Fixes jagrosh#514 Require inputing name for playlist make <name> command (jagrosh#1046)

* Fixes jagrosh#514 Require inputing name for `playlist make <name>` command

playlist make command without a name will now not make an empty playlist without a playlist name.

* Update src/main/java/com/jagrosh/jmusicbot/commands/owner/PlaylistCmd.java

Co-authored-by: Michaili K <mysteriouscursor+git@protonmail.com>

* Rid excessive hints

Co-authored-by: Michaili K <mysteriouscursor+git@protonmail.com>

Author: all-laugh

src/main/java/com/jagrosh/jmusicbot/commands/owner/PlaylistCmd.java

@@ -72,7 +72,11 @@ public MakelistCmd()
         protected void execute(CommandEvent event) 
         {
             String pname = event.getArgs().replaceAll("\\s+", "_");
-            if(bot.getPlaylistLoader().getPlaylist(pname)==null)
+            if(pname == null || pname.isEmpty()) 
+            {
+                event.replyError("Please provide a name for the playlist!");
+            } 
+            else if(bot.getPlaylistLoader().getPlaylist(pname) == null)
             {
                 try
                 {