Fix deployment failure when kolla_dev_mod is enabled

trivial fix

Change-Id: I43bc11183c2fa9773811a74a93c37cecceed7454

ansible/roles/masakari/tasks/clone.yml

@@ -7,10 +7,10 @@
     update: "{{ masakari_dev_repos_pull }}"
     version: "{{ masakari_source_version }}"
 
-- name: Cloning masakarimonitors source repository for development
+- name: Cloning masakari monitors source repository for development
   become: true
   git:
-    repo: "{{ masakarimonitors_git_repository }}"
+    repo: "{{ masakari_monitors_git_repository }}"
     dest: "{{ kolla_dev_repos_directory }}/masakari-monitors"
-    update: "{{ masakarimonitors_dev_repos_pull }}"
-    version: "{{ masakarimonitors_source_version }}"
+    update: "{{ masakari_monitors_dev_repos_pull }}"
+    version: "{{ masakari_monitors_source_version }}"