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>

http-fetch.c

@@ -828,7 +828,7 @@ static void abort_object_request(struct object_request *obj_req)
 	}
 	unlink(obj_req->tmpfile);
 	if (obj_req->slot) {
- 		release_active_slot(obj_req->slot);
+		release_active_slot(obj_req->slot);
 		obj_req->slot = NULL;
 	}
 	release_object_request(obj_req);