More "command-line edits" in prompts.

Again, by Chicago Manual of Style (CMOS) and several other style guides, we
hyphenate compound /modifiers/ when they come /before/ the word being
modified.

So the "command line" is not hyphenated, but the "command-line mode" is. 

This is consistent with Vim help style conventions as well.

vimperator/locale/en-US/cmdline.txt

@@ -1,6 +1,6 @@
 HEADER
 
-|Command-line-mode| |Command-line| +
+|Command-line mode| |Command-line| +
 
 Command-line mode is used to enter Ex commands (":") and text search patterns
 ("/" and "?").
@@ -8,7 +8,7 @@ Command-line mode is used to enter Ex commands (":") and text search patterns
 |:| +
 ||:||
 ________________________________________________________________________________
-Start Command-line mode. In Command-line mode, you can perform extended
+Start command-line mode. In command-line mode, you can perform extended
 commands, which may require arguments.
 ________________________________________________________________________________
 
@@ -32,16 +32,16 @@ ________________________________________________________________________________
 |c_<Up>| +
 ||<Up>||
 ________________________________________________________________________________
-Recall the previous command-line from the history list which matches the
+Recall the previous command line from the history list which matches the
-current command-line.
+current command line.
 ________________________________________________________________________________
 
 
 |c_<Down>| +
 ||<Down>||
 ________________________________________________________________________________
-Recall the next command-line from the history list which matches the current
+Recall the next command line from the history list which matches the current
-command-line.
+command line.
 ________________________________________________________________________________
 
 
@@ -49,7 +49,7 @@ ________________________________________________________________________________
 ||<S-Up>|| +
 ||<PageUp>||
 ________________________________________________________________________________
-Recall the previous command-line from the history list.
+Recall the previous command line from the history list.
 ________________________________________________________________________________
 
 
@@ -57,7 +57,7 @@ ________________________________________________________________________________
 ||<S-Down>|| +
 ||<PageDown>||
 ________________________________________________________________________________
-Recall the next command-line from the history list.
+Recall the next command line from the history list.
 ________________________________________________________________________________
 
 section:Command-line{nbsp}completion[cmdline-completion]

vimperator/locale/en-US/gui.txt

@@ -10,7 +10,7 @@ and the sidebar.
 |:emenu| +
 ||:emenu {menu}||
 ________________________________________________________________________________
-Execute {menu} from the command-line. This command provides command-line access
+Execute {menu} from the command line. This command provides command-line access
 to all menu items available from the main Firefox menubar. {menu} is a
 hierarchical path to the menu item with each submenu separated by a period.
 E.g. [c]:emenu File.Open File...[c]

vimperator/locale/en-US/index.txt

@@ -128,8 +128,8 @@ section:Command-line{nbsp}editing[ex-edit-index]
 
 ||<C-]>|| Expand a command-line abbreviation +
 
-||<Up>|| Recall the previous command-line from the history list which matches the current command-line +
+||<Up>|| Recall the previous command line from the history list which matches the current command line +
-||<Down>|| Recall the next command-line from the history list which matches the current command-line +
+||<Down>|| Recall the next command line from the history list which matches the current command line +
 
 ||<Tab>|| Complete the word in front of the cursor according to the behavior specified in 'wildmode' +
 ||<S-Tab>|| Complete the previous full match when 'wildmode' contains "full" +
@@ -172,7 +172,7 @@ section:Ex{nbsp}commands[ex-cmd-index,:index]
 ||:echo|| Echo the expression +
 ||:echoerr|| Echo the expression as an error message +
 ||:echomsg|| Echo the expression as an informational message +
-||:emenu|| Execute the specified menu item from the command-line +
+||:emenu|| Execute the specified menu item from the command line +
 ||:execute|| Execute the argument as an Ex command +
 ||:exusage|| List all Ex commands with a short description +
 ||:finish|| Stop sourcing a script file +
@@ -295,7 +295,7 @@ section:Options[option-index]
 ||'scroll'|| Number of lines to scroll with and commands +
 ||'shell'|| Shell to use for executing :! and :run commands +
 ||'shellcmdflag'|| Flag passed to shell when executing :! and :run commands +
-||'showmode'|| Show the current mode in the command-line +
+||'showmode'|| Show the current mode in the command line +
 ||'showstatuslinks'|| Show the destination of the link under the cursor in the status bar +
 ||'showtabline'|| Control when to show the tab bar of opened web pages +
 ||'smartcase'|| Override the 'ignorecase' option if the pattern contains uppercase characters +

vimperator/locale/en-US/map.txt

@@ -10,7 +10,7 @@ which are translated to a string of characters. Example:
 
   :map <F2> :echo new Date().toDateString()<CR>
 
-will echo the current date to the command-line when [m]<F2>[m] is pressed.
+will echo the current date to the command line when [m]<F2>[m] is pressed.
 
 There are separate key mapping tables for each of the Normal, Insert,
 Command-line modes.
@@ -143,9 +143,9 @@ ________________________________________________________________________________
 
 |:map-<silent>| +
 ________________________________________________________________________________
-When the first argument to one of the mapping commands is <silent>, {rhs}
+When the first argument to one of the mapping commands is <silent>,
-is not echoed to the command-line, nor, for that matter, is anything else
+{rhs} is not echoed to the command line, nor, for that matter, anything
-until the command has completed.
+else until the command has completed.
 ________________________________________________________________________________
 
 
@@ -373,7 +373,7 @@ and <bang> will be available in the argument.
 Replacement text
 
 The replacement text {rep} is scanned for escape sequences and these are
-replaced with values from the user entered command-line. The resulting string
+replaced with values from the user-entered command line. The resulting string
 is then executed as an Ex command.
 
 The valid escape sequences are:

vimperator/locale/en-US/options.txt

@@ -585,7 +585,7 @@ ____
 //____
 //Default height for preview window
 //
-//Value must be between 1 and 50. If the value is too high, completions may cover the command-line. Close the preview window with :pclose.
+//Value must be between 1 and 50. If the value is too high, completions may cover the command line. Close the preview window with :pclose.
 //Note: Option currently disabled
 //____
 
@@ -650,7 +650,7 @@ ____
 |\'nosmd'| |\'noshowmode'| |\'smd'| |\'showmode'|
 ||'showmode' 'smd'|| boolean (default: on)
 ____
-Show the current mode in the command-line.
+Show the current mode in the command line.
 ____
 
 
@@ -663,7 +663,7 @@ Also links which are focused by keyboard commands like [m]<Tab>[m] are shown. Po
 .---`--------------------------------------
 *0* Don't show link destination
 *1* Show the link in the status line
-*2* Show the link in the command-line
+*2* Show the link in the command line
 -------------------------------------------
 
 ____

vimperator/locale/en-US/tutorial.txt

@@ -159,12 +159,12 @@ to return here, depending on which key you used to activate QuickHint mode.
 section:Common{nbsp}issues[common-issues]
 
 Say you get half-way done typing in a new URL, only to remember that you've
-already got that page open in the previous tab. Your command-line might look
+already got that page open in the previous tab. Your command line might look
 something like this:
 
   :open my.partial.url/fooba
 
-You can exit the command-line and access the already loaded page with the
+You can exit the command line and access the already loaded page with the
 following:
 
   <Esc>gT
@@ -210,7 +210,7 @@ make the best use of them.
     It's exactly what it sounds like. This command will display a colorized,
     scrollable and clickable list of the locations in Vimperator's history.
   * [c]:emenu[c] --
-    Access the Firefox menus through the Vimperator command-line.
+    Access the Firefox menus through the Vimperator command line.
 
 
 Feel free to explore at this point. If you use the [c]:tabopen[c] command,

vimperator/locale/en-US/various.txt

@@ -19,7 +19,7 @@ ____
 ||:norm[al][!] {commands}|| +
 ________________________________________________________________________________
 Execute Normal mode commands {commands}. This makes it possible to execute
-Normal mode commands typed on the command-line. {commands} is executed like it
+Normal mode commands typed on the command line. {commands} is executed like it
 is typed. If the [!] is given, mappings will not be used. {commands} should be
 a complete command. {commands} cannot start with a space. Put a 1 (one) before
 it, 1 space is one space.
@@ -94,8 +94,8 @@ section:Uncategorized{nbsp}help[uncategorized]
 |<C-[>| |<Esc>| +
 ||<Esc>||
 ________________________________________________________________________________
-Focus content. Exits any command-line or hint mode and returns to browser
+Focus content. Exits command-line or hint mode and returns to browser
-mode. Also focuses the web page, in case a form field has focus and eats
+mode. Also focuses the web page in case a form field has focus and eats
 our key presses.
 ________________________________________________________________________________