HEADS UP: Triage of rcNG related problem reports/USE_RC_SUBR

[Andrew Pantyukhin]

I'm sorry, I didn't have time to do extensive testing and
check b.p.m for the bug myself, so here it goes.

I noticed that ".sh" is stripped. So I decided to save b.p.m
the effort and renamed files/start.sh.in to files/start.in. Now
I used USE_RC_SUBR=start (instead of start.sh). Guess
what? b.p.m added ".sh" for me :-)