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>

upload-pack.c

@@ -678,7 +678,7 @@ int main(int argc, char **argv)
 			break;
 		}
 	}
-	
+
 	if (i != argc-1)
 		usage(upload_pack_usage);
 	dir = argv[i];