Used type Integer instead of Fixnum (avoid warning since ruby 2.4) #45
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Avoid a warning that is triggered in util.rb with ruby 2.5:
/usr/lib/ruby/vendor_ruby/main/util.rb:47: warning: constant ::Fixnum is deprecated
In sass/sass#2218 I found a discussion whether they tested the replacement to "Integer" and it worked in all ruby versions back to 1.8.7.
Feel free to test it.