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, 2 insertions, 2 deletions

diff --git a/third_party/nix/src/libstore/local-fs-store.cc b/third_party/nix/src/libstore/local-fs-store.cc
index 0361dbd9774d..3dd63498b2dc 100644
--- a/third_party/nix/src/libstore/local-fs-store.cc
+++ b/third_party/nix/src/libstore/local-fs-store.cc
@@ -96,10 +96,10 @@ std::shared_ptr<std::string> LocalFSStore::getBuildLog(const Path& path_) {
                           : fmt("%s/%s/%s", logDir, drvsLogDir, baseName);
     Path logBz2Path = logPath + ".bz2";
 
-    if (pathExists(logPath))
+    if (pathExists(logPath)) {
       return std::make_shared<std::string>(readFile(logPath));
 
-    else if (pathExists(logBz2Path)) {
+    } else if (pathExists(logBz2Path)) {
       try {
         return decompress("bzip2", readFile(logBz2Path));
       } catch (Error&) {