global: Switch the function-declarations to avoid unexpected alias expansions

plugins/kubectl/kubectl.plugin.sh

@@ -76,7 +76,7 @@ alias kdd='kubectl describe deployment'
 alias kdeld='kubectl delete deployment'
 alias ksd='kubectl scale deployment'
 alias krsd='kubectl rollout status deployment'
-kres(){
+function kres {
     kubectl set env $@ REFRESHED_AT=$(date +%Y%m%d%H%M%S)
 }