Remove trailing whitespace.

Also, the script is a one-liner, stolen from [1]:

ack --print0 -l '[ \t]+$' | xargs -0 -n1 perl -pi -e 's/[ \t]+$//'

[1]
https://stackoverflow.com/questions/149057/how-to-remove-trailing-whitespace-of-all-files-recursively

src/Makefile.am

@@ -4,7 +4,7 @@ BUILT_SOURCES = wconfig.h
 
 bin_PROGRAMS = wmaker
 
-EXTRA_DIST = 
+EXTRA_DIST =
 
 wmaker_SOURCES = 	\
 	GNUstep.h \
@@ -152,7 +152,7 @@ AM_CFLAGS =
 
 AM_CPPFLAGS = $(DFLAGS) \
 	-I$(top_srcdir)/wrlib \
-	-I$(top_srcdir)/WINGs @HEADER_SEARCH_PATH@ 
+	-I$(top_srcdir)/WINGs @HEADER_SEARCH_PATH@
 
 
 wmaker_LDADD = \

src/appicon.c

@@ -934,9 +934,9 @@ Bool wHandleAppIconMove(WAppIcon *aicon, XEvent *event)
 
 				shad_x = lastDock->x_pos + ix*wPreferences.icon_size;
 				shad_y = lastDock->y_pos + iy*wPreferences.icon_size;
-			  
+
 				XMoveWindow(dpy, scr->dock_shadow, shad_x, shad_y);
-			  
+
 				if (!ondock) {
 					XMapWindow(dpy, scr->dock_shadow);
 				}
@@ -945,7 +945,7 @@ Bool wHandleAppIconMove(WAppIcon *aicon, XEvent *event)
 				lastDock = theNewDock; // i.e., NULL
 				if (ondock) {
 					XUnmapWindow(dpy, scr->dock_shadow);
-					/* 
+					/*
 					 * Leaving that weird comment for now.
 					 * But if we see no gap, there is no need to fill one!
 					 * We could test ondock first and the lastDock to NULL afterwards

src/dock.c

@@ -603,7 +603,7 @@ static void toggleAutoAttractCallback(WMenu *menu, WMenuEntry *entry)
 
 	if (dock->attract_icons) {
 		if (dock->type == WM_DRAWER) {
-			/* The newly auto-attracting dock is a drawer: disable any clip and 
+			/* The newly auto-attracting dock is a drawer: disable any clip and
 			 * previously attracting drawer */
 
 			if (!wPreferences.flags.noclip) {
@@ -843,7 +843,7 @@ static WAppIcon *mainIconCreate(WScreen *scr, int type, const char *name)
 			name = findUniqueName(scr, "Drawer");
 		btn = wAppIconCreateForDock(scr, NULL, name, "WMDrawer", TILE_DRAWER);
 		btn->icon->core->descriptor.handle_expose = drawerIconExpose;
-		x_pos = 0;		
+		x_pos = 0;
 	}
 
 	btn->xindex = 0;
@@ -4386,7 +4386,7 @@ static int addADrawer(WScreen *scr)
 			}
 		}
 	}
-    
+
 	if (!found_y)
 		/* This can happen even when dock->icon_count + scr->drawer_count
 		 * < dock->max_icons when the dock is not aligned on an

src/icon.c

@@ -669,7 +669,7 @@ void update_icon_pixmap(WIcon *icon)
 		XFreePixmap(dpy, icon->pixmap);
 
 	icon->pixmap = None;
- 
+
 	/* Create the pixmap */
 	if (icon->file_image)
 		icon_update_pixmap(icon, icon->file_image);

src/screen.c

@@ -907,7 +907,7 @@ void wScreenRestoreState(WScreen * scr)
 		state = WMGetFromPLDictionary(scr->session_state, dClip);
 		scr->clip_icon = wClipRestoreState(scr, state);
 	}
-	
+
 	if (!wPreferences.flags.nodrawer) {
 		if (!scr->dock->on_right_side) {
 			/* Drawer tile was created early in wScreenInit() -> wReadDefaults(). At

src/wconfig.h.in

@@ -111,7 +111,7 @@
 /*
  * Some of the following options can be configured in the preference files,
  * but if for some reason they can't, these are their defaults.
- * 
+ *
  * There are also some options that can only be configured here, at compile time.
  */
 

src/wmspec.c

@@ -1686,7 +1686,7 @@ Bool wNETWMProcessClientMessage(XClientMessageEvent *event)
 				wwin->flags.maximized = maximized;
 				wUnmaximizeWindow(wwin);
 			} else {
-				wMaximizeWindow(wwin, wwin->flags.maximized, 
+				wMaximizeWindow(wwin, wwin->flags.maximized,
 						wGetHeadForWindow(wwin));
 			}
 		}