[PATCH 2 of 5 STABLE V2] debian: add missing python-all-dev dependency

[Sean Farley]

# HG changeset patch
# User Sean Farley <sean at farley.io>
# Date 1460753176 25200
#      Fri Apr 15 13:46:16 2016 -0700
# Branch stable
# Node ID f0f90b5f00b5b36e6114bd6f9e049506ca9c2757
# Parent  b7fb0360f172f06477a07bf510aca176109c0cba
# EXP-Topic ppa
debian: add missing python-all-dev dependency

diff --git a/contrib/debian/control b/contrib/debian/control
--- a/contrib/debian/control
+++ b/contrib/debian/control
@@ -3,11 +3,12 @@ Section: vcs
 Priority: optional
 Maintainer: Mercurial Developers <mercurial-devel at selenic.com>
 Build-Depends:
  debhelper (>= 7),
  dh-python,
- python-all
+ python-all,
+ python-all-dev
 Standards-Version: 3.9.4
 X-Python-Version: >= 2.6
 
 Package: mercurial
 Depends: