ext/standard/tests/crypt/des_fallback_invalid_salt.phpt: less valid salt

Musl's crypt() implementation of DES tries to handle invalid salts and
can make this test fail because it returns an answer and not an
error. Even musl however will reject a salt with a ':' in it, so we
can make this test cross-platform by supplying an even less valid
salt.

Author: orlitzky

ext/standard/tests/crypt/des_fallback_invalid_salt.phpt

@@ -3,8 +3,11 @@ Test DES with invalid fallback
 --FILE--
 <?php
 
-var_dump(crypt("test", "$#"));
-var_dump(crypt("test", "$5zd$01"));
+// musl tries to support invalid DES salts unless they would violate
+// the /etc/passwd format, so we include colons to ensure that musl
+// crypt() will fail on these inputs as well.
+var_dump(crypt("test", "$:#"));
+var_dump(crypt("test", "$:5zd$01\n"));
 
 ?>
 --EXPECT--