Strip trailing whitespace from source files

Performed with: `git ls-files | xargs perl -i -p -e 's{[ \t]+$}{}'`

`git diff -w` & `git diff -b` show no diffs from this change

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2074>

randr/rrcrtc.c

@@ -2087,6 +2087,6 @@ RRHasScanoutPixmap(ScreenPtr pScreen)
         if (crtc->scanout_pixmap)
             return TRUE;
     }
-    
+
     return FALSE;
 }