simplified vol_perc() (and with that config.def.h is super clean)

config.def.h

@@ -1,8 +1,5 @@
 /* See LICENSE file for copyright and license details. */
 
-/* alsa sound */
-#define ALSA_CHANNEL    "Master"
-
 /* how often to update the statusbar (min value == 1) */
 #define UPDATE_INTERVAL 1
 

slstatus.c

@@ -459,7 +459,7 @@ uid(void)
 
 
 static char *
-vol_perc(const char *snd_card)
+vol_perc(const char *soundcard)
 { /* FIX THIS SHIT! */
 	long int vol, max, min;
 	snd_mixer_t *handle;
@@ -471,7 +471,7 @@ vol_perc(const char *snd_card)
 	snd_mixer_selem_register(handle, NULL, NULL);
 	snd_mixer_load(handle);
 	snd_mixer_selem_id_malloc(&s_elem);
-	snd_mixer_selem_id_set_name(s_elem, ALSA_CHANNEL);
+	snd_mixer_selem_id_set_name(s_elem, "Master");
 	elem = snd_mixer_find_selem(handle, s_elem);
 
 	if (elem == NULL) {