I would go into the opposite direction and disallow trailing commas everywhere. They are a legacy design and hardly anybody knows about them (that's good!).
- Trailing commas in "command" syntax? exelotl
- Trailing commas in "command" syntax? juancarlospaco
- Trailing commas in "command" syntax? xigoi
- Trailing commas in "command" syntax? Araq
- Trailing commas in "command" syn... dwin
- Trailing commas in "command"... detla
- Trailing commas in "command&... ynfle
- Trailing commas in "comm... haxscramper
- Trailing commas in "comm... Araq
- Trailing commas in "comm... xigoi
- Trailing commas in "comm... haxscramper
- Trailing commas in "comm... xigoi
- Trailing commas in "comm... shirleyquirk
