[SCM] vlc/master: Expand comment

[sramacher at users.alioth.debian.org]

The following commit has been merged in the master branch:
commit 85d6580a9f3b5290bce4102029114de931117e7f
Author: Sebastian Ramacher <sramacher at debian.org>
Date:   Sun Dec 31 18:53:30 2017 +0100

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diff --git a/debian/rules b/debian/rules
index cefcb22..c2967f0 100755
--- a/debian/rules
+++ b/debian/rules
@@ -211,7 +211,8 @@ endif
 
 # Ubuntu specific flags
 ifeq (Ubuntu,$(DEB_VENDOR))
-# protobuf related issues
+# protobuf related issues only observable on Ubuntu since Mir uses it
+# https://github.com/google/protobuf/issues/206
 confflags += --disable-chromecast
 removeplugins += chromecast
 else

-- 
VLC media player packaging