Re: [rhinstaller/anaconda/pulls/265 master] Add few docs and improvement in check_ip_address

[dashea]

> @@ -161,9 +179,12 @@ def prefix2netmask(prefix):
>      netmask = ".".join(str(byte) for byte in _bytes)
>      return netmask
>
> -# Try to determine what the hostname should be for this system
>  def getHostname():
>
> """ Try to determine what the hostname should be for this system
>    :return: Hostname for this system

this can also be dropped