Since there is no port/address ambiguity anymore, when looking for an
address bare numbers can always be interpreted as IPv4 addresses with
one field. Therefore, special function for parsing IPv4 as 'net' argument
can be removed.
Fixes issue: bare numbers as 'net' arguments were not interpreted
correctly if there was more than one space after 'net'.
Fixes issue: hostnames starting with a number looking like a part
of IPv4 were not interpreted correctly.
Since there is no port/address ambiguity anymore, when looking for an address bare numbers can always be interpreted as IPv4 addresses with one field. Therefore, special function for parsing IPv4 as 'net' argument can be removed.
Fixes issue: bare numbers as 'net' arguments were not interpreted correctly if there was more than one space after 'net'.
Fixes issue: hostnames starting with a number looking like a part of IPv4 were not interpreted correctly.
Added parser tests for fixed issues.