uppercase letters and 'sender' tag

[bVector]

uppercase letters are not handled properly in twitter usernames when filtering by 'sender'
test:
/twirssi_set_channel sender MixedCaseTwitterUsername EFnet #testing123

command line arguments get converted to lowercase, removing 'lc' from line 1337 resolves this issue (but perhaps breaks other unhandled uppercase)

[gedge]

has this be resolved now?

[gedge]

Assuming resolved.