treewide: convert all option docs to Markdown

This process was automated by [my fork of `nix-doc-munge`]; thanks
to @pennae for writing this tool! It automatically checks that the
resulting documentation doesn't change, although my fork loosens
this a little to ignore some irrelevant whitespace and typographical
differences.

As of this commit there is no DocBook remaining in the options
documentation.

You can play along at home if you want to reproduce this commit:

    $ NIX_PATH=nixpkgs=flake:nixpkgs/c1bca7fe84c646cfd4ebf3482c0e6317a0b13f22 \
      nix shell nixpkgs#coreutils \
      -c find . -name '*.nix' \
      -exec nix run github:emilazy/nix-doc-munge/0a7190f600027bf7baf6cb7139e4d69ac2f51062 \
      {} +

[my fork of `nix-doc-munge`]: https://github.com/emilazy/nix-doc-munge

1 files changed, 5 insertions, 5 deletions

diff --git a/modules/system/default.nix b/modules/system/default.nix
index 629760c..58369a8 100644
--- a/modules/system/default.nix
+++ b/modules/system/default.nix
@@ -22,7 +22,7 @@ in
       internal = true;
       type = types.attrsOf types.unspecified;
       default = {};
-      description = ''
+      description = lib.mdDoc ''
         Attribute set of derivation used to setup the system.
       '';
     };
@@ -30,7 +30,7 @@ in
     system.path = mkOption {
       internal = true;
       type = types.package;
-      description = ''
+      description = lib.mdDoc ''
         The packages you want in the system environment.
       '';
     };
@@ -38,7 +38,7 @@ in
     system.profile = mkOption {
       type = types.path;
       default = "/nix/var/nix/profiles/system";
-      description = ''
+      description = lib.mdDoc ''
         Profile to use for the system.
       '';
     };
@@ -48,7 +48,7 @@ in
       internal = true;
       default = [];
       example = [ { assertion = false; message = "you can't enable this for that reason"; } ];
-      description = ''
+      description = lib.mdDoc ''
         This option allows modules to express conditions that must
         hold for the evaluation of the system configuration to
         succeed, along with associated error messages for the user.
@@ -60,7 +60,7 @@ in
       default = [];
       type = types.listOf types.str;
       example = [ "The `foo' service is deprecated and will go away soon!" ];
-      description = ''
+      description = lib.mdDoc ''
         This option allows modules to show warnings to users during
         the evaluation of the system configuration.
       '';