ref-filter: drop useless cast in trailers_atom_parser()

There's no need to cast invalid_arg before freeing it. It is already a
non-const pointer.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/ref-filter.c b/ref-filter.c
index e39f505a81e9c0535dea721ac89051485aa60d07..4d0df546dabe452a11e5c1d4b492460a2599a080 100644 (file)
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -578,7 +578,7 @@ static int trailers_atom_parser(struct ref_format *format UNUSED,
                                strbuf_addf(err, _("expected %%(trailers:key=<value>)"));
                        else
                                strbuf_addf(err, _("unknown %%(trailers) argument: %s"), invalid_arg);
-                       free((char *)invalid_arg);
+                       free(invalid_arg);
                        return -1;
                }
        }