[python-actdiag] Add some info about the patch

[Bohuslav Kabrda]

commit f557738d3d3401083e2a772b224ebbcfb015bc5a
Author: Slavek Kabrda <bkabrda at redhat.com>
Date:   Tue May 20 14:20:48 2014 +0200

    Add some info about the patch

 python-actdiag.spec |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/python-actdiag.spec b/python-actdiag.spec
index de2d972..e0eb32f 100644
--- a/python-actdiag.spec
+++ b/python-actdiag.spec
@@ -13,6 +13,8 @@ License:        ASL 2.0
 URL:            http://blockdiag.com/
 Source0:        https://bitbucket.org/%{owner}/%{srcname}/get/%{tag}.tar.gz
 Source1:        description-%{srcname}.txt
+# Fix flake8 violations that make tests fail with Python 3.4
+#  https://bitbucket.org/blockdiag/actdiag/commits/b6e8b47da293982d85cc4630578d454344d71200/
 Patch0:         %{name}-fix-flake8-violations.patch
 
 BuildArch:      noarch