last one in the pipe to make sure failed regression tests don't bake a
cookie when REGRESS_LOG is set (default).
Also redirect stderr to regress log and introduce REGRESS_STATUS_IGNORE
variable so post-regress targets like found in cpan.port.mk can do the
actual failure detection.
Problem noticed by bluhm@, latching of exit code suggested by steven@
Testing, feedback and ok on earlier version by bluhm@, 'go for it' espie@
to use it set CPAN_REPORT=Yes, CPAN_REPORT_FROM to your email address
and CPAN_REPORT_DB to a directory (like PLIST_DB)
initially by steven@
feedback from steven@, msf@, rui@, espie@, merdely@, okan@
ok msf@
