Made sure that messages purged display proper number

cogs/moderation.py

@@ -391,7 +391,7 @@ class Moderation(Cog):
                 deleted = await ctx.channel.purge(limit=amount,
                                                   after=datetime.datetime.utcnow() - timedelta(days=14))
 
-                await ctx.send(f"Deleted **{len(deleted) + 1:,}** messages.", delete_after=5)
+                await ctx.send(f"Deleted **{len(deleted):,}** messages.", delete_after=5)
 
             # Send error if amount is not between 0 and 100
             else:
@@ -407,7 +407,7 @@ class Moderation(Cog):
             deleted = await ctx.channel.purge(limit=50,
                                               after=datetime.datetime.utcnow() - timedelta(days=14))
 
-            await ctx.send(f"Deleted **{len(deleted) + 1:,}** messages.", delete_after=5)
+            await ctx.send(f"Deleted **{len(deleted):,}** messages.", delete_after=5)
 
     @Cog.listener()
     async def on_raw_bulk_message_delete(self, payload):