updated upgrade scripts

tasks/main.yml

diff --git a/tasks/main.yml b/tasks/main.yml
index 7aa1f39..62252c7 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -30,11 +30,11 @@
 
 - name: Validate OPDK Installation
   expect:
-    command: '{{ apigee_service }} apigee-validate setup -f {{ apigee_validate_config_file }}'
+    command: {{ apigee_service | quote }} apigee-validate setup -f {{ apigee_validate_config_file }}
     responses:
       '(?i)Press a key:': '\n'
   when: opdk_version | version_compare('4.16.09', '<')
 
 - name: Validate OPDK Installation
-  shell: '{{ apigee_service }} apigee-validate setup -f {{ apigee_validate_config_file }}'
+  shell: {{ apigee_service  | quote }} apigee-validate setup -f {{ apigee_validate_config_file }}