--from does not accept pattern starting with #

[c-bb]

$ repren --from '#include <a.h>' --to '#include <b.h>' .
error: found no parse patterns

Same with --literal:

$ repren --literal --from '#include <a.h>' --to '#include <b.h>' .
error: found no parse patterns

This is because it interprets the # as a comment character (in function parse_patterns()).

It would be nice if this comment logic did not apply when patterns are supplied directly via --from --to, and/or when --literal is given.

[jlevy]

Yeah, agreed. Feel free to submit a PR (with a test showing it working).