roll: allow junk at end of line

This enables "fun" stuff like "!roll 20 bottles of milk"

hotdog/command/roll.py

@@ -17,12 +17,9 @@ def init(bot):
 
 
 async def handle(message: Message):
-    if len(message.args) == 1 and message.args[0].isdecimal():
-        dice = [(1, int(message.args[0]))]
-    else:
     dice = []
     num = None
-        for arg in message.args:
+    for consumed, arg in enumerate(message.args, start=1):
         if (match := parse_die(arg)) :
             if num and match["num"]:
                 return
@@ -36,7 +33,10 @@ async def handle(message: Message):
                 return
             num = int(arg)
         else:
-                return
+            consumed -= 1
+            break
+    if not dice and num:
+        dice.append((1, num))
 
     if not 0 < len(dice) < 20:
         return
@@ -56,4 +56,8 @@ async def handle(message: Message):
             for sides, vs in sorted(rolls.items(), key=lambda i: i[0], reverse=1)
         )
         text = f"{total} = {dicestr}"
+
+    if len(message.args) > consumed:
+        text += " " + " ".join(message.args[consumed:])
+
     await reply(message, plain=text, in_thread=True)