- Patch #1216976 by cosmicdreams, DyanneNova, aspilicious, rupl, Jacine,...

- Patch #1216976 by cosmicdreams, DyanneNova, aspilicious, rupl, Jacine, mortendk, dcmouyard: clean up the CSS for Comment module.

core/modules/comment/comment.theme-rtl.css

+
+/**
+ * @file
+ * RTL styles for comment module.
+ */
+
+/**
+ * Indent threaded comments.
+ */
+.indented {
+  margin-left: 0;
+  margin-right: 25px;
+}

core/modules/comment/comment.theme.css

+
+/**
+ * @file
+ * Basic styling for comment module.
+ */
+
+/**
+ * Indent threaded comments.
+ */
+.indented {
+  margin-left: 25px; /* LTR */
+}