War on whitespace

This uses "git-apply --whitespace=strip" to fix whitespace errors that have
crept in to our source files over time.  There are a few files that need
to have trailing whitespaces (most notably, test vectors).  The results
still passes the test, and build result in Documentation/ area is unchanged.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

fetch-pack.c

@@ -114,7 +114,7 @@ static const unsigned char* get_rev(void)
 		commit->object.flags |= POPPED;
 		if (!(commit->object.flags & COMMON))
 			non_common_revs--;
-	
+
 		parents = commit->parents;
 
 		if (commit->object.flags & COMMON) {