[SOLVED] : command not found19: :Qkbq - An annoying error log when you change state of service

I am writing for more information about error log looks like this:

: command not found19: :Qkbq

If you are changing a state of service in "/etc/init.d/..." like this:
/etc/init.d/net.wlan0 start
/etc/init.d/net.eth0 restart
/etc/init.d/postfix pause
/etc/init.d/postfix status
etc. etc. etc.

You can see this error log. If you want to know how to solve this problem you
can follow this:
The main problem is in "/etc/rc.conf". The high probability is in ones of line
of this files looks like command name i.ex. "Qkbq". Next you should comment
this line or delete bad line from this file.

Enjoy!

Best regards,
Maveius