I need colorizing content of the "*.zsh" files in mcedit.
With "zsh(env|rc)" regexp rule, only "*.zshenv" and "*.zshrc" files are will be colorized.
With "zsh(env|rc)?" regexp rule, "*.zsh" files will be colorized too.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>