treewide: Apply clang-format

Nixpkgs bump in the flake bumps clang-format, so we now have a diff
compared to what was used to format the codebase previously. We should
have made sure that the nixpkgs input is the same in the first place.

src/libutil/unix/processes.cc

@@ -253,8 +253,13 @@ pid_t startProcess(std::function<void()> fun, const ProcessOptions & options)
 std::string runProgram(
     Path program, bool lookupPath, const Strings & args, const std::optional<std::string> & input, bool isInteractive)
 {
-    auto res = runProgram(RunOptions{
-        .program = program, .lookupPath = lookupPath, .args = args, .input = input, .isInteractive = isInteractive});
+    auto res = runProgram(
+        RunOptions{
+            .program = program,
+            .lookupPath = lookupPath,
+            .args = args,
+            .input = input,
+            .isInteractive = isInteractive});
 
     if (!statusOk(res.first))
         throw ExecError(res.first, "program '%1%' %2%", program, statusToString(res.first));