mupdf: Add a reference to upstream zathura-pdf-mupdf commit

[Leonardo Taccari <leot%NetBSD.org@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Leonardo Taccari <leot%NetBSD.org@localhost>
Pushed By:	leot
Date:		Sat Aug 3 16:12:00 2019 +0200
Changeset:	a54747fb3cba180bdedf4164f60ecf6585b4ddab

Modified Files:
	mupdf/TODO

Log Message:
mupdf: Add a reference to upstream zathura-pdf-mupdf commit

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=a54747fb3cba180bdedf4164f60ecf6585b4ddab

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

diffstat:
 mupdf/TODO | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diffs:
diff --git a/mupdf/TODO b/mupdf/TODO
index 59b056c26a..51bca14599 100644
--- a/mupdf/TODO
+++ b/mupdf/TODO
@@ -16,5 +16,7 @@
  |                        ^~~~~~~~~~~~~~~
  | ninja: build stopped: subcommand failed.
 
-  Investigate further and fix it.
+  This is due a minor change in mupdf 1.16.0 API and fixed upstream via:
+
+   <https://git.pwmt.org/pwmt/zathura-pdf-mupdf/commit/95c830c9f6cfe4ba99535ecfba0a700ceb15a25a>
 - Readd `curl' option?