For options that need username, should inherit config["username"]

[richo]

richo-mbp ± ./github issues --repo twat
[ https://github.com/richoH/openbox/issues/1 ] WindowSwitch doesn't give focus from a fullscreen window
[ https://github.com/richoH/twat/issues/1 ] Identi.ca support
[ https://github.com/shabble/irssi-scripts/issues/11 ] takes forever to unload
richo-mbp ± ./github issues --user richoH --repo twat
[ https://github.com/richoH/twat/issues/5 ] Deleted tweets are not caught
[ https://github.com/richoH/twat/issues/4 ] Insert mode should allow for URL shortening
[ https://github.com/richoH/twat/issues/3 ] Modular output support
[ https://github.com/richoH/twat/issues/2 ] 100% test coverage
[ https://github.com/richoH/twat/issues/1 ] Identi.ca support
richo-mbp ± 

First example should have output the second.