[clementine] Add a link to the patch forcing to use bundled sha2 library

[Jan Grulich]

commit 809ca506d7f96de42f16ff2a76479e347ea0a939
Author: Jan Grulich <jgrulich at redhat.com>
Date:   Mon Sep 22 14:58:49 2014 +0200

    Add a link to the patch forcing to use bundled sha2 library

 clementine.spec |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/clementine.spec b/clementine.spec
index c2b6374..c77edbb 100644
--- a/clementine.spec
+++ b/clementine.spec
@@ -15,6 +15,9 @@ Patch0:         clementine-mygpo.patch
 # * non-compliant groups, https://code.google.com/p/clementine-player/issues/detail?id=2690
 Patch3:         clementine-desktop.patch
 Patch4:         clementine-udisks-headers.patch
+
+# Use bundled sha2 library
+# https://github.com/clementine-player/Clementine/issues/4217
 Patch5:         clementine-do-not-use-system-sha2.patch
 
 BuildRequires:  boost-devel