fixed syntax

Author: kyb3r

bot.py

@@ -153,7 +153,7 @@ def help_embed(self):
 
     @commands.command()
     @commands.has_permissions(administrator=True)
-    async def setup(self, ctx, *modroles: discord.Role = None):
+    async def setup(self, ctx, modroles: discord.Role):
         '''Sets up a server for modmail'''
         if discord.utils.get(ctx.guild.categories, name='modmail'):
             return await ctx.send('This server is already set up.')