fix test_comment_00 for #103
diff --git a/src/lib_json/json_writer.cpp b/src/lib_json/json_writer.cpp
index 467ab82..d8a3046 100644
--- a/src/lib_json/json_writer.cpp
+++ b/src/lib_json/json_writer.cpp
@@ -376,6 +376,9 @@
     addChildValues_ = true;
     int lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
     for (int index = 0; index < size; ++index) {
+      if (hasCommentForValue(value[index])) {
+        isMultiLine = true;
+      }
       writeValue(value[index]);
       lineLength += int(childValues_[index].length());
     }
@@ -584,6 +587,9 @@
     addChildValues_ = true;
     int lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
     for (int index = 0; index < size; ++index) {
+      if (hasCommentForValue(value[index])) {
+        isMultiLine = true;
+      }
       writeValue(value[index]);
       lineLength += int(childValues_[index].length());
     }