nixos/*: automatically convert option descriptions

conversions were done using https://github.com/pennae/nix-doc-munge
using (probably) rev f34e145 running

    nix-doc-munge nixos/**/*.nix
    nix-doc-munge --import nixos/**/*.nix

the tool ensures that only changes that could affect the generated
manual *but don't* are committed, other changes require manual review
and are discarded.

1 files changed, 3 insertions, 3 deletions

diff --git a/nixos/modules/services/mail/offlineimap.nix b/nixos/modules/services/mail/offlineimap.nix
index 17c09df8f92a..64fa09e83612 100644
--- a/nixos/modules/services/mail/offlineimap.nix
+++ b/nixos/modules/services/mail/offlineimap.nix
@@ -7,18 +7,18 @@ let
 in {
 
   options.services.offlineimap = {
-    enable = mkEnableOption "OfflineIMAP, a software to dispose your mailbox(es) as a local Maildir(s)";
+    enable = mkEnableOption (lib.mdDoc "OfflineIMAP, a software to dispose your mailbox(es) as a local Maildir(s)");
 
     install = mkOption {
       type = types.bool;
       default = false;
-      description = ''
+      description = lib.mdDoc ''
         Whether to install a user service for Offlineimap. Once
         the service is started, emails will be fetched automatically.
 
         The service must be manually started for each user with
         "systemctl --user start offlineimap" or globally through
-        <varname>services.offlineimap.enable</varname>.
+        {var}`services.offlineimap.enable`.
       '';
     };