[Cleanup] newrelic, don't compare to empty string

newrelic/tasks/php.yml

@@ -6,7 +6,7 @@
     question: "newrelic-php5/application-name"
     value: "{{ newrelic_appname }}"
     vtype: string
-  when: newrelic_appname != ""
+  when: newrelic_appname
 
 - name: Pre-seed package configuration with license
   debconf:
@@ -14,7 +14,7 @@
     question: "newrelic-php5/license-key"
     value: "{{ newrelic_license }}"
     vtype: "string"
-  when: newrelic_license != ""
+  when: newrelic_license
 
 - name: list newrelic config files
   shell: "find /etc/php* -type f -name newrelic.ini"

newrelic/tasks/sysmond.yml

@@ -9,5 +9,5 @@
     dest: /etc/newrelic/nrsysmond.cfg
     regexp: "license_key=REPLACE_WITH_REAL_KEY"
     replace: "license_key={{ newrelic_license }}"
-  when: newrelic_license != ""
+  when: newrelic_license
   notify: restart newrelic-sysmond