src: update comment

Co-authored-by: Joyee Cheung <joyeec9h3@gmail.com>

Author: debadree25

src/node.cc

@@ -1162,7 +1162,7 @@ ExitCode LoadSnapshotDataAndRun(const SnapshotData** snapshot_data_ptr,
     }
     std::unique_ptr<SnapshotData> read_data = std::make_unique<SnapshotData>();
     if (!SnapshotData::FromBlob(read_data.get(), fp)) {
-      // If we fail to read the customized snapshot, simply exit with 1.
+      // If we fail to read the customized snapshot, simply exit with kStartupSnapshotFailure.
       exit_code = ExitCode::kStartupSnapshotFailure;
       return exit_code;
     }