<pre> elements should at least have white-space: pre-wrap

src/Umbraco.Web.UI.Client/src/less/hacks.less

@@ -202,7 +202,7 @@ pre {
   //font-size: @baseFontSize - 1; // 14px to 13px
   color: @gray-2;
   line-height: @baseLineHeight;
-  white-space: pre-line; // 1
+  white-space: pre-wrap; // 1
   overflow-x: auto; // 1
   background-color: @gray-10;
   border: 1px solid @gray-8;
@@ -222,4 +222,4 @@ pre {
     background-color: transparent;
     border: 0;
   }
-}
+}