Allow library to be used with frozen-string-literals enabled.

pat · pat · commit c8b3085e4b45 · 2017-06-22T14:49:21.000+10:00
diff --git a/lib/simplecov-html/version.rb b/lib/simplecov-html/version.rb
@@ -1,7 +1,7 @@
 module SimpleCov
   module Formatter
     class HTMLFormatter
-      VERSION = "0.10.1"
+      VERSION = "0.10.1".dup
 
       def VERSION.to_a
         split(".").map(&:to_i)
