Update access-repo-information.groovy

The GitHub Org Folder job may not be created at the Jenkins master top-level. Using the tokens list size and walking back from there will always provide the correct index for org, repo, and branch.

Author: kmadel

pipeline-examples/github-org-plugin/access-repo-information.groovy

@@ -2,7 +2,7 @@
 
     // github-organization-plugin jobs are named as 'org/repo/branch'
     tokens = "${env.JOB_NAME}".tokenize('/')
-    org = tokens[0]
-    repo = tokens[1]
-    branch = tokens[2]
+    org = tokens[tokens.size()-3]
+    repo = tokens[tokens.size()-2]
+    branch = tokens[tokens.size()-1]