apply: mark unused parameters in noop error/warning routine

We squelch error/warning output by passing a noop handler to
set_error_routine(). We need to tell the compiler that this is intended
so that it doesn't trigger -Wunused-parameter.

Signed-off-by: Jeff King <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: peff

apply.c

@@ -125,7 +125,7 @@ void clear_apply_state(struct apply_state *state)
 	/* &state->fn_table is cleared at the end of apply_patch() */
 }
 
-static void mute_routine(const char *msg, va_list params)
+static void mute_routine(const char *msg UNUSED, va_list params UNUSED)
 {
 	/* do nothing */
 }