Mea maxima culpa.  Previous merge was in error.

Pointed out by:	ache
Merge David's copyright updates from HEAD.
Bring in all of 1.236.  No more HEAD crap.
Merge from rev. 1.237.
YAMFC
Partial merge from main branch: make exech_map 16*PAGE_SIZE.
Merge in rev. 1.238.
Merge from HEAD.

Approved by: phk, jkh (in order of arrival).
YAMFC
YAMFC, now that I'm happy with sysinstall again.  It should now be safe
to build releases in both 2.2 and 3.0-current.
YAMFC
Soften range-check for LDTs, as in -current.
Requested-By: swallace
YAMFC
YAMFC
Requested-By: swallace
YAMFC
YAMFC
Merge the fix from rev 1.2: uninitialized local variable  use.
YAMFC
OGIYAMFC
YAMFC