From Gisle Vanem on -dev: don't print modelines info when run with -h.

Also remove trailing white space.

Change-Id: Ic56140f617a2cbf9fa93fb427282eab0b6cff9c6
Reviewed-on: https://code.wireshark.org/review/2113
Reviewed-by: Evan Huus <eapache@gmail.com>

make-version.pl

@@ -256,7 +256,7 @@ sub read_repo_info {
 			no warnings "all";
 			# If someone had properly tagged 1.9.0 we could also use
 			# "git describe --abbrev=1 --tags HEAD"
-			
+
 			$info_cmd = "(cd $srcdir; git log --format='%b' -n 1)";
 			$line = qx{$info_cmd};
 			if (defined($line)) {
@@ -709,6 +709,8 @@ make-version.pl [options] [source directory]
 Options can be used in any combination. If none are specified B<--set-svn>
 is assumed.
 
+=cut
+
 #
 # Editor modelines  -  http://www.wireshark.org/tools/modelines.html
 #