license header should be at the top; add source repo for attribution purposes and update musl home page

Author: ixfd64

src/myfnmatch.c

@@ -1,16 +1,21 @@
-#include "myfnmatch.h"
-#ifndef HAS_FNMATCH
 /*
- * Lifted from musl commit efa9d396f9d3af6c6f85ec86302b48206c574a38,
- * root/src/regex/fnmatch.c, under a GPLv3-compatible license.
- *
- * mfakto-specific changes: deleted unnecessary flags
- * Copyright (c) 2025 Mingye Wang
+ * Lifted from musl under a GPLv3-compatible license.
  *
- * musl (www.musl-libc.org)
- * Copyright (C) 2012-2013 Rich Felker
+ * Source repo:	https://git.musl-libc.org/cgit/musl
+ * Commit ID:	efa9d396f9d3af6c6f85ec86302b48206c574a38
+ * Path:		src/regex/fnmatch.c
+ * 
+ * musl
+ * Home page: https://musl.libc.org
+ * Copyright (c) 2012-2013 Rich Felker
  * SPDX-License-Identifier: MIT
  *
+ * mfakto-specific changes: deleted unnecessary flags
+ * Copyright (c) 2025 Mingye Wang
+ */
+#include "myfnmatch.h"
+#ifndef HAS_FNMATCH
+/*
  * An implementation of what I call the "Sea of Stars" algorithm for
  * POSIX fnmatch(). The basic idea is that we factor the pattern into
  * a head component (which we match first and can reject without ever