feature request: disallow comments that start with -[^ ] by default

[ian-kelling]

sometimes i do something like: t in -o 10:23. Obviously I didn't mean for the -o 10:23 that to become a comment. Seems like better ui to just fail in this case unless someone does something like -f or adjusts their config.

[ian-kelling]

Oh, I was writing without thinking, normal command line programs, you need to do -- to do an non-option that starts with -. Thats how timetrap should work.