Prevent failures on Ansible 2.7 when no repo is set on RedHat.

tasks/setup-Debian.yml

@@ -3,5 +3,4 @@
   apt: update_cache=yes cache_valid_time=3600
 
 - name: Ensure Apache is installed on Debian.
-  apt: "name={{ item }} state={{ apache_packages_state }}"
+  apt: "name={{ apache_packages }} state={{ apache_packages_state }}"
-  with_items: "{{ apache_packages }}"

tasks/setup-RedHat.yml

@@ -1,7 +1,6 @@
 ---
 - name: Ensure Apache is installed on RHEL.
   yum:
-    name: "{{ item }}"
+    name: "{{ apache_packages }}"
     state: "{{ apache_packages_state }}"
-    enablerepo: "{{ apache_enablerepo }}"
+    enablerepo: "{{ apache_enablerepo | default(omit) }}"
-  with_items: "{{ apache_packages }}"

tasks/setup-Solaris.yml

@@ -1,6 +1,5 @@
 ---
 - name: Ensure Apache is installed on Solaris.
   pkg5:
-    name: "{{ item }}"
+    name: "{{ apache_packages }}"
     state: "{{ apache_packages_state }}"
-  with_items: "{{ apache_packages }}"

tasks/setup-Suse.yml

@@ -1,6 +1,5 @@
 ---
 - name: Ensure Apache is installed on Suse.
   zypper:
-    name: "{{ item }}"
+    name: "{{ apache_packages }}"
     state: "{{ apache_packages_state }}"
-  with_items: "{{ apache_packages }}"