Merge pull request #13806 from NixOS/fix-meson-format

Fix meson formatting error

Author: edolstra

src/nix/meson.build

@@ -77,8 +77,8 @@ nix_sources = [ config_priv_h ] + files(
   'edit.cc',
   'env.cc',
   'eval.cc',
-  'flake.cc',
   'flake-prefetch-inputs.cc',
+  'flake.cc',
   'formatter.cc',
   'hash.cc',
   'log.cc',