fixes issue #663 , i3block break (#675)

i3block wont break with this

.local/bin/statusbar/music

@@ -2,7 +2,7 @@
 
 filter() { mpc | sed "/^volume:/d;s/\\&/&/g;s/\\[paused\\].*/⏸/g;/\\[playing\\].*/d" | paste -sd ' ';}
 
-pidof -x mpdup >/dev/null 2>&1 || mpdup &
+pidof -x mpdup >/dev/null 2>&1 || mpdup >/dev/null 2>&1 &
 
 case $BLOCK_BUTTON in
 	1) mpc status | filter ; setsid -f "$TERMINAL" -e ncmpcpp ;;  # right click, pause/unpause