Good idea but strange syntax. It would be more idiomatic if the command came first and the list of globs last.

Additionally the use of "--" is not what everybody expects: here it is used to introduce one argument, the command, while it's usually meant to introduce multiple arguments without worrying if they have a leading "-".

A possible revised syntax with command as the first argument followed by a list of globs optionally introduced by "--" would allow to enumerate all files with a leading "-", which the current syntax cannot:

  enumerate 'whatever {}' -- '-*'

I'm assuming "-f" for simplicity, but the same reasoning holds for "-L" too.