Fix WRITING_MODE_IGNORED's comment in NGFragment::MarginStrut

third_party/WebKit/Source/core/layout/ng/ng_fragment.cc

Index: third_party/WebKit/Source/core/layout/ng/ng_fragment.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_fragment.cc b/third_party/WebKit/Source/core/layout/ng/ng_fragment.cc
index 6c5cdbd5b51040294b9c17d231aab4a1daf5d3d7..9ccb19c283e5d3dcdca3bf3a0ea477a19439d410 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_fragment.cc
+++ b/third_party/WebKit/Source/core/layout/ng/ng_fragment.cc
@@ -11,8 +11,9 @@ namespace blink {
 
 NGMarginStrut NGFragment::MarginStrut() const {
   WRITING_MODE_IGNORED(
-      "Accessing the margin strut ignoring the writing mode here is fine."
-      "A margin strut is never set for a fragment");
+      "Accessing the margin strut is fine here. Changing the writing mode"
+      "establishes a new formatting context, for which a margin strut is never"
+      "set for a fragment.");
   return toNGPhysicalFragment(physical_fragment_)->MarginStrut();
 }