Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
PR 1381/networking
* libnetworking/netinet/ip_output.c: If a null or unreachable gateway
is specified either statically in networkconfig.h or from dhcp/bootp,
sendto() fails on multicast send with errno 118 Host
* libnetworking/netinet/ip_output.c: when fragmenting
multicast packets M_MCAST must be set on all fragments.
This was fixed in FreeBSD ip_output.c 1.82 on 1998/8/23 !
(see my email to rtems-users from 2008/5/15).