Merge linewrap changes

Merge linewrap changes

Wed Jul 17 11:29:26 1996  Miles Bader  <miles@gnu.ai.mit.edu>

	* stdio/linewrap.c (lwupdate): Fix boundary condition where a
 	word extends right up to rmargin.

	* stdio/linewrap.c (lwupdate): When we've done a word wrap and
	output the wrap margin, set point_col to wmargin.
	Use negative point_col to deal with a wmargin of 0.
	(line_wrap_point): Return 0 for a negative point_col.
	(line_wrap_stream): Make wmargin ssize_t.
	* stdio/linewrap.h (struct line_wrap_data): Make wmargin &
 	point_col ssize_t.
	(line_wrap_stream): Make wmargin ssize_t.
	(line_wrap_point): Return 0 for a negative point_col.

Tue Jul 16 00:18:19 1996  Miles Bader  <miles@gnu.ai.mit.edu>

	* stdio/linewrap.c (__line_wrap_update): Add hackery from flshfp
 	to fiddle __put_limit in conjunction with __linebuf_active.