Merge pull request apache#339 from theopenlab/fix-if-issue

Fix if issue in keyword contain case

Author: liusheng

roles/move-k8s-repo-to-k8s-specific-dir/tasks/main.yaml

@@ -3,7 +3,7 @@
     cmd: |
       set -x
       ## to path src/sigs.k8s.io/
-      if [ '{{ zuul.project.src_dir }}' =~ 'kubernetes-sigs' ]; then
+      if [[ '{{ zuul.project.src_dir }}' =~ 'kubernetes-sigs' ]]; then
           mkdir -p $(dirname '{{ k8s_sigs_repo_src_dir }}')
           mv '{{ zuul.project.src_dir }}' '{{ k8s_sigs_repo_src_dir }}'
       ## to path src/k8s.io/