Conform with pip 1.2+ --src instead of --source

Joan Touzet · Joan Touzet · commit 8d2e89ccd848 · 2012-12-12T02:28:49.000-05:00
diff --git a/providers/gunicorn.rb b/providers/gunicorn.rb
@@ -134,10 +134,10 @@ def install_requirements
     else
       pip_cmd = ::File.join(new_resource.virtualenv, 'bin', 'pip')
     end
-    execute "#{pip_cmd} install --source=#{Dir.tmpdir} -r #{new_resource.requirements}" do
+    execute "#{pip_cmd} install --src=#{Dir.tmpdir} -r #{new_resource.requirements}" do
       cwd new_resource.release_path
     end
   else
     Chef::Log.debug("No requirements file found")
   end
-end
+end
