fixup! unix-socket: avoid leak when initialization fails

This downstream fix changed `return -1` to `goto fail` in
`unix_stream_connect()` so that `unix_sockaddr_cleanup()` would run
even when `unix_sockaddr_init()` failed, avoiding a memory leak of
`ctx->orig_dir`.

Upstream fixed the same leak more surgically in c5fe29f
(unix-socket: fix memory leak when chdir(3p) fails, 2025-01-30) by
having `unix_sockaddr_init()` itself call `FREE_AND_NULL()` on
`ctx->orig_dir` before returning -1. With that fix in v2.54.0, the
caller's `goto fail` path would only call `unix_sockaddr_cleanup()`
as a no-op (since `orig_dir` is already NULL), making the downstream
patch redundant.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

unix-socket.c

@@ -84,7 +84,7 @@ int unix_stream_connect(const char *path, int disallow_chdir)
 	struct unix_sockaddr_context ctx;
 
 	if (unix_sockaddr_init(&sa, path, &ctx, disallow_chdir) < 0)
-		goto fail;
+		return -1;
 	fd = socket(AF_UNIX, SOCK_STREAM, 0);
 	if (fd < 0)
 		goto fail;