Miscellaneous help fixes.

vimperator/locale/en-US/buffer.txt

@@ -375,4 +375,4 @@ the page's default style sheet is used.
 All author styling can be removed by setting the 'usermode' option.
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-// vim: set filetype=asciidoc fdm=marker:
+// vim: set filetype=asciidoc:

vimperator/locale/en-US/options.txt

@@ -550,7 +550,7 @@ ____
 |\'nomore'| |\'more'|
 ||'more'|| boolean (default: on)
 ____
-Pause the message list window when more than one screen of listings is displayed
+Pause the message list window when more than one screen of listings is displayed.
 ____