try imported version

tasks/wine.yml

@@ -1,10 +1,19 @@
 ---
-- name: Activate Multilib
+- name: "add multilib"
   lineinfile:
-    dest: /etc/pacman.conf
-    regexp: '^#[multilib]\n#Include = /etc/pacman.d/mirrorlist'
-    line: 'multilib\nInclude = /etc/pacman.d/mirrorlist'  
-    backrefs: yes
+    dest: "/etc/pacman.conf"
+    state: "present"
+    line: "[multilib]"
+    regexp: "^\\[multilib\\]"
+    insertafter: "^#\\[multilib\\]"
+
+- name: "add multilib (cont)"
+  lineinfile:
+    dest: "/etc/pacman.conf"
+    state: "present"
+    line: "Include = /etc/pacman.d/mirrorlist"
+    insertafter: "^\\[multilib\\]"
+    regexp: "Include = /etc/pacman.d/mirrorlist"
 
 - name: Update pacman cache
   pacman: