Re: OS/2 patch for _27

Re: OS/2 patch for _27

The bulk of this patch is README.os2 which has a lot of formatting
stripped (it is at the end). The rest (340 lines of -u) is quite simple.

INSTALL
	t/harness documented.
lib/Test/Harness.pm
	Can test files with -T on hash-bang line.
	Gets more info from tests which coredump.
	Will not try to load Devel::CoreStack on each test.
os2/Changes
	Updated.
os2/OS2/PrfDB/t/os2_prfdb.t
	File closed.
os2/os2.c
	Poor-man's setup of environment if DLL run from non-conforming EXE.
os2/os2ish.h
	Poor-man's setup of environment if DLL run from non-conforming EXE.
	ALTERNATE_SHEBANG defined.
os2/perl2cmd.pl
	Updated for ALTERNATE_SHEBANG.
perl.c
	If ALTERNATE_SHEBANG defined, just ignore -S on the starting
	line. (It might be already used by OS to start perl.)
pod/perldelta.pod
	Malloc's PERL_DEBUG_MSTATS, EMERGENCY_SBR, PACK_MALLOC,
	TWO_POT_OPTIMIZE documented.
t/harness
	Does not require -I../lib any more.
t/op/magic.t
	Now works under OS/2 with both tests.
t/TEST
	Adds an advice to use
		perl harness
	to get better granularity.
README.os2
	A lot of markup stripped (in the hope that smart converters
	will add it back), minor updates.

p5p-msgid: <199702210024.TAA03174@monk.mps.ohio-state.edu>