Collecting output from pip upgrade and returning to user

mopidy_iris/system.sh

@@ -1,15 +1,16 @@
 #!/bin/bash
 
 if [[ $1 = "upgrade" ]]; then
-	UPGRADE=$(pip install --upgrade mopidy-iris)
-	echo -e "$UPGRADE"
+
+	UPGRADE="$(pip install --upgrade mopidy-iris)"
+	echo -e "${UPGRADE}"
 
 elif [[ $1 = "restart" ]]; then
-	
-	sleep 5
 
-	RESTART=$(service mopidy restart)
-	echo -e "$RESTART"
+	sleep $2
+
+	RESTART="$(service mopidy restart)"
+	echo -e "${RESTART}"
 fi
 
 exit 0