[SCM] libav/ubuntu.extra: libav-tools: add pre-depends on dpkg

[siretart at users.alioth.debian.org]

The following commit has been merged in the ubuntu.extra branch:
commit 70f21393a7e4aac867f8cbef6cd842d3c2d47aa5
Author: Reinhard Tartler <siretart at tauware.de>
Date:   Sun Jun 10 20:23:09 2012 +0200

    libav-tools: add pre-depends on dpkg
    
    This ensures smooth upgrades.
    Found by lintian.

diff --git a/debian/control b/debian/control
index a4e15ff..df39571 100644
--- a/debian/control
+++ b/debian/control
@@ -58,6 +58,8 @@ Replaces:
  ffmpeg (<< 4:0.8~),
  libavcodec-extra-53 (<< 4:0.6~),
  libavcodec53 (<< ${source:Version})
+Pre-Depends:
+ dpkg (>= 1.15.7.2~)
 Depends:
  ${misc:Depends},
  ${shlibs:Depends}

-- 
Libav/FFmpeg packaging