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>

entry.c

@@ -31,7 +31,7 @@ static void remove_subtree(const char *path)
 	struct dirent *de;
 	char pathbuf[PATH_MAX];
 	char *name;
-	
+
 	if (!dir)
 		die("cannot opendir %s (%s)", path, strerror(errno));
 	strcpy(pathbuf, path);