Merge pull request #88 from frederickcook/patch-1

fix undefined local variable or method `owner'

lib/fastlane/plugin/appcenter/helper/appcenter_helper.rb

@@ -370,7 +370,7 @@ module Fastlane
           UI.message("DEBUG: #{JSON.pretty_generate(response.body)}\n") if ENV['DEBUG']
           false
         else
-          UI.error("Error getting app #{owner}/#{app_name}, #{response.status}: #{response.body}")
+          UI.error("Error getting app #{owner_name}/#{app_name}, #{response.status}: #{response.body}")
           false
         end
       end
@@ -404,4 +404,4 @@ module Fastlane
       end
     end
   end
-end
+end