irc: Use English variables names

Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
irc: Remove useless white-spaces

Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
irc: Make the 'struct file_operations' be const

Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
irc: Use pr_* instead of printk

Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
irc: Use Linux kernel coding style

All changes are result to chckpatch.pl warnings/errors

Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
irc: Remove useless comments, fix block comments formatting

Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>