feat(bin): set default param

bin/open-url-with-delay

@@ -7,7 +7,7 @@ open-url-with-delay(){
     fi
 
     local browser_open=${BROWSER_OPEN:=True}
-    local seconds=${2:=2}
+    local seconds=${2:-2}
     if [[ $browser_open == 'True' ]]; then
         sleep "$seconds"
         open-with-os "$1"