nixos/manual: normalize <programlisting>

makes sure that program listing tags are separated from their contents
by exactly a newline character. this makes the markdown translation
easier to verify (since no new newlines need to be inserted), and
there's no rendering difference anyway.

1 files changed, 8 insertions, 4 deletions

diff --git a/nixos/modules/services/mail/mailman.xml b/nixos/modules/services/mail/mailman.xml
index 9510cbe82c5..c1ad5d1a285 100644
--- a/nixos/modules/services/mail/mailman.xml
+++ b/nixos/modules/services/mail/mailman.xml
@@ -16,7 +16,8 @@
     <title>Basic usage with Postfix</title>
     <para>
       For a basic configuration with Postfix as the MTA, the following settings are suggested:
-      <programlisting>{ config, ... }: {
+      <programlisting>
+{ config, ... }: {
   services.postfix = {
     enable = true;
     relayDomains = ["hash:/var/lib/mailman/data/postfix_domains"];
@@ -36,7 +37,8 @@
   };
   services.nginx.virtualHosts."lists.example.org".enableACME = true;
   networking.firewall.allowedTCPPorts = [ 25 80 443 ];
-}</programlisting>
+}
+</programlisting>
     </para>
     <para>
       DNS records will also be required:
@@ -60,7 +62,8 @@
     <title>Using with other MTAs</title>
     <para>
       Mailman also supports other MTA, though with a little bit more configuration. For example, to use Mailman with Exim, you can use the following settings:
-      <programlisting>{ config, ... }: {
+      <programlisting>
+{ config, ... }: {
   services = {
     mailman = {
       enable = true;
@@ -82,7 +85,8 @@
       config = builtins.readFile ./exim.conf;
     };
   };
-}</programlisting>
+}
+</programlisting>
     </para>
     <para>
       The exim config needs some special additions to work with Mailman. Currently