[PATCH] Cygwin: pty: Revise code to make system_printf() work after close.

[Ken Brown]

On 5/21/2020 4:25 AM, Takashi Yano via Cygwin-patches wrote:
> - After commit 0365031ce1347600d854a23f30f1355745a1765c, the issue
>    https://cygwin.com/pipermail/cygwin-patches/2020q2/010259.html
>    occurs. This patch fixes the issue.

Thanks.  I can confirm that it's fixed.

Ken