style(3p/nix): Enforce braces around loops and conditionals r/767

This change was generated with:

  fd -e cc -e hh | xargs -I{} clang-tidy {} -p ~/projects/nix-build/ \
    --checks='-*,readability-braces-around-statements' --fix \
    -fix-errors

Some manual fixes were applied because some convoluted unbraced
statements couldn't be untangled by clang-tidy.

This commit still includes invalid files, but I decided to clean them
up in a subsequent commit so that it becomes more obvious where
clang-tidy failed. Maybe this will allow for a bug-report to
clang-tidy.

1 files changed, 4 insertions, 2 deletions

diff --git a/third_party/nix/src/nix/ls.cc b/third_party/nix/src/nix/ls.cc
index b23f83eb78..68a2c203de 100644
--- a/third_party/nix/src/nix/ls.cc
+++ b/third_party/nix/src/nix/ls.cc
@@ -74,8 +74,10 @@ struct MixLs : virtual Args, MixJSON {
     if (json) {
       JSONPlaceholder jsonRoot(std::cout);
       listNar(jsonRoot, accessor, path, recursive);
-    } else
-      listText(accessor);
+    } else {
+      listText
+    }
+    (accessor);
   }
 };