Layout of /etc/services

[Lisi <lisi.reisz@gmail.com>]

In an /etc/services file, why are some port/protocol entries inset more than 
others?

The obvious answer would be: because the names are longer and the entry 
therefore needs more space.  But that doesn't work.  E.g. the two entries for 
gds_ub (one for tcp, and one for udp) are indented the extra space, but the 
two entries for radmin-port are not indented the extra space even though they 
are longer names.

So - why is info on some entries inset more than that on others?

I realise that the answer may be totally trivial, but I am checking in case it 
has meaning or even is important.

Lisi