add dokuwiki mime.local.conf

roles/dokuwiki/files/var_www_dokuwiki_conf_mime.local.conf

+# Allowed uploadable file extensions and mimetypes are defined here.
+# To extend this file it is recommended to create a mime.local.conf
+# file. Mimetypes that should be downloadable and not be opened in the
+# should be prefixed with a !
+
+s2p     !text/plain

roles/dokuwiki/tasks/dokuwiki.yml

     mode=0644
     force=no
 
+- name: Add initial DokuWiki MIME config
+  copy:
+    src=var_www_dokuwiki_conf_mime.local.conf
+    dest=/var/www/dokuwiki/conf/mime.local.conf
+    owner=www-data
+    group=www-data
+    mode=0644
+    force=no
+
 - name: Add initial DokuWiki config file
   template:
     src=var_www_dokuwiki_conf_local.j2