Fix Emacs syntax highlighting in NixOS dovecot module.

Changed files
+1 -1
nixos
modules
services
+1 -1
nixos/modules/services/mail/dovecot.nix
···
${concatStringsSep "\n" (mapAttrsToList (to: from: ''
if [ -d '${from}' ]; then
mkdir '${stateDir}/sieve/${to}'
-
cp ${from}/*.sieve '${stateDir}/sieve/${to}'
+
cp "${from}/"*.sieve '${stateDir}/sieve/${to}'
else
cp '${from}' '${stateDir}/sieve/${to}'
fi