" Use only 65 characters per line as given in rfc1855.
setlocal textwidth=65
-" Replace trailing whitespace after quotes.
-silent! %s/\(^>.\+\)\@<=\s\+$//
+" Remove trailing whitespace after quotes.
+silent! %s/\(^>.\{-}\)\@<=\s\+$//
" Remove spaces between quotes (> > to >>).
silent! %s/^>\+\zs >/>/g
silent! %s/^>\+\zs >/>/g