K 10
svn:author
V 2
cy
K 8
svn:date
V 27
2018-04-18T19:18:14.813304Z
K 7
svn:log
V 326
MFC r331936, r331942, r331943, r331945, r331947, r331948

Add new gets_s(3) stdio function.

This implements the gets_s(3) function as documented at
http://en.cppreference.com/w/c/io/gets. It facilitates the
optional removal of gets(3).

Reviewed by:	ed
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D12785

END