[M3commit] CVS Update: cm3

[Rodney M. Bates]

CVSROOT:	/usr/cvs
Changes by:	rodney at birch.	09/02/19 21:25:35

Modified files:
	cm3/m3-libs/m3core/src/text/: String8.m3 String16.m3 

Log message:
	Fix a bug in 2 places where a NIL check is applied
	too late, after address arithmetic has already been
	done on the pointer, leading to segment faults.
	
	Also, in String16.m3, Copy in semantic description
	comments from the interface to the procedure bodies.