Bug#247964: Add missing nsMemory::Free() (+whitespace fixes). Patch by <jonathan.watt@strath.ac.uk>. SVG only - not part of default build.

content/svg/content/src/nsSVGRect.cpp

@@ -140,6 +140,8 @@ nsSVGRect::SetValueString(const nsAString& aValue)
     DidModify();
   }
 
+  nsMemory::Free(str);
+
   return rv;
 }