tk_eof is now a val_or_end token. This makes lily_cliexec work again.
tk_eof is now a val_or_end token. This makes lily_cliexec work again.

If tk_eof is caught by lily_fs, then lily_fs will remark about an unexpected
eof being hit within lily_parser. However, lily_fs is set to a different file
type, and so an eof is fine there.

FascinatedBox/lily,FascinatedBox/lily,FascinatedBox/lily,jesserayadkins/lily,jesserayadkins/lily,jesserayadkins/lily,FascinatedBox/lily