Mute unset output

zsh-nvm.plugin.zsh

@@ -100,7 +100,7 @@ _zsh_nvm_lazy_load() {
 
     # When called, unset all lazy loaders, load nvm then run current command
     eval "$cmd(){
-      unset -f $cmds
+      unset -f $cmds > /dev/null 2>&1
       _zsh_nvm_load
       $cmd \"\$@\"
     }"