[Cleanup] php and postfix

Comparison with litteral True and False ( `var == False` ⇔ `not var` or
`var is boolean and var` or ` var is sameas False` should there be a
need to check if it is really a boolean that is False and not only
something evaluationg to False)

php/tasks/main.yml

@@ -1,6 +1,7 @@
 ---
 
-- fail:
+- name: Check for compatibility
+  fail:
     msg: only compatible with Debian >= 8
   when:
   - ansible_distribution != "Debian" or ansible_distribution_major_version is version('8', '<')

postfix/meta/main.yml

@@ -14,8 +14,8 @@ galaxy_info:
     - jessie
 
 dependencies:
-  - { role: evolix/ldap, ldap_schema: 'cn4evolix.ldif', when: postfix_packmail == True }
-  - { role: evolix/spamassasin, when: postfix_packmail == True }
-  - { role: evolix/clamav, when: postfix_packmail == True }
-  - { role: evolix/opendkim, when: postfix_packmail == True }
-  - { role: evolix/dovecot, when: postfix_packmail == True }
+  - { role: evolix/ldap, ldap_schema: 'cn4evolix.ldif', when: postfix_packmail }
+  - { role: evolix/spamassasin, when: postfix_packmail }
+  - { role: evolix/clamav, when: postfix_packmail }
+  - { role: evolix/opendkim, when: postfix_packmail }
+  - { role: evolix/dovecot, when: postfix_packmail }

postfix/tasks/main.yml

@@ -3,10 +3,10 @@
 - include: common.yml
 
 - include: minimal.yml
-  when: postfix_packmail == False
+  when: not postfix_packmail
 
 - include: packmail.yml
-  when: postfix_packmail == True
+  when: postfix_packmail
 
 - include: slow_transport.yml
   when: postfix_slow_transport_include