[newlib-cygwin/cygwin-3_0-branch] Cygwin: document the last bug fix

[Ken Brown]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=ac8cf0681cc513d3dfcbc39464231c5b0d55461a

commit ac8cf0681cc513d3dfcbc39464231c5b0d55461a
Author: Ken Brown <kbrown@cornell.edu>
Date:   Wed Jul 24 14:52:01 2019 -0400

    Cygwin: document the last bug fix

Diff:
---
 winsup/cygwin/release/3.0.8 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/winsup/cygwin/release/3.0.8 b/winsup/cygwin/release/3.0.8
index 11d11db..61e3248 100644
--- a/winsup/cygwin/release/3.0.8
+++ b/winsup/cygwin/release/3.0.8
@@ -14,3 +14,6 @@ Bug Fixes
 
 - Don't append ".lnk" when renaming a socket file.
   Addresses: https://cygwin.com/ml/cygwin/2019-07/msg00139.html
+
+- Make tcsetpgrp() return -1 if its argument is negative.
+  Addresses: https://cygwin.com/ml/cygwin/2019-07/msg00166.html