debian/control - add python{,3}-cffi to build-depends

debian/changelog

@@ -3,7 +3,7 @@ python-pygit2 (0.21.4-2) UNRELEASED; urgency=medium
   * debian/watch
     - add trailing slash to fix downloads
   * debian/control
-    - add python{,3}-pycparser to build-depends
+    - add python{,3}-{cffi,pycparser} to build-depends
   * debian/rules
     - export http{,s}_proxy to prevent any online activity during build
 

debian/control

@@ -12,7 +12,8 @@ Build-Depends: debhelper (>= 9),
                python-sphinx,
                python3-all-dev (>= 3.2),
                python3-setuptools,
-			   python-pycparser, python3-pycparser,
+               python-pycparser, python3-pycparser,
+               python-cffi, python3-cffi,
 Standards-Version: 3.9.6
 Vcs-Browser: http://anonscm.debian.org/gitweb/?p=openstack/python-pygit2.git
 Vcs-Git: git://anonscm.debian.org/openstack/python-pygit2.git