prboom-plus: Add link to upstream bugtracker in patch

[Michael Baeuerle <michael.baeuerle%stz-e.de@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Michael Baeuerle <michael.baeuerle%stz-e.de@localhost>
Pushed By:	micha
Date:		Thu Mar 5 15:25:09 2020 +0100
Changeset:	2c9972db45e9a0d5917642c4ba26ca7ce097acbb

Modified Files:
	prboom-plus/patches/patch-src_p__setup.c

Log Message:
prboom-plus: Add link to upstream bugtracker in patch

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=2c9972db45e9a0d5917642c4ba26ca7ce097acbb

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

diffstat:
 prboom-plus/patches/patch-src_p__setup.c | 3 +++
 1 file changed, 3 insertions(+)

diffs:
diff --git a/prboom-plus/patches/patch-src_p__setup.c b/prboom-plus/patches/patch-src_p__setup.c
index 6c334ad3e7..e94684614d 100644
--- a/prboom-plus/patches/patch-src_p__setup.c
+++ b/prboom-plus/patches/patch-src_p__setup.c
@@ -12,6 +12,9 @@ bits if the target data type is unsigned.
 If memory allocation returns NULL, do not continue (dereference the
 NULL pointer and crash).
 
+Reported upstream as bug #256:
+https://sourceforge.net/p/prboom-plus/bugs/256/
+
 --- src/p_setup.c.orig	2016-01-10 18:01:30.000000000 +0000
 +++ src/p_setup.c
 @@ -1024,6 +1024,7 @@ static void CheckZNodesOverflow(int *siz