help2man build race

[Pádraig Brady]

I noticed the following when building just modified md5sum.c just now:

  CCLD   src/sha1sum
help2man: can't get `--help' info from man/sha1sum.td/sha1sum
Try `--no-discard-stderr' if option outputs to stderr
make[2]: *** [man/sha1sum.1] Error 127
make[2]: *** Waiting for unfinished jobs....
make[2]: Leaving directory `/home/padraig/git/coreutils'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/padraig/git/coreutils'
make: *** [all] Error 2

127 = failure to find command, so I've guessing a race
related to the recent help2man man page generation changes.
I'll look later in any case.

thanks,
Pádraig.