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.
Adding pppd:
* pppd/Makefile-user: New, copied over from libnetworking/pppd/example.
* pppd/README: New, copied over from libnetworking/pppd/example.
* pppd/init.c: New, copied over from libnetworking/pppd/example.
* pppd/netconfig.h: New, copied over from libnetworking/pppd/example.
* pppd/ppp.conf: New, copied over from libnetworking/pppd/example.
* pppd/pppdapp.c: New, copied over from libnetworking/pppd/example.
* pppd/system.h: New, copied over from libnetworking/pppd/example.
* pppd/pppd.options: New, copied over from libnetworking/pppd/example.
* pppd/Makefile.am: New, converted to automake from Makefile-user.
* pppd/.cvsignore: New.
