disk-usage.sh: quote assignment, for safety

ctrueden · ctrueden · commit 49f1eb4cfc35 · 2015-08-16T21:37:09.000-05:00
diff --git a/disk-usage.sh b/disk-usage.sh
@@ -20,7 +20,7 @@ do
 	case "$1" in
 	--threshold|-t)
 		shift
-		threshold=$1
+		threshold="$1"
 		;;
 	*)
 		check "$1"
