lib/mailtrap/attachment.rb in mailtrap-2.0.0 vs lib/mailtrap/attachment.rb in mailtrap-2.1.0

@@ -38,10 +38,10 @@
 
     private
 
     def encode(io)
       string = io.read.encode('UTF-8') unless io.respond_to?(:binmode?) && io.binmode?
-      Base64.encode64(string).gsub(/\n/, '')
+      Base64.encode64(string).gsub("\n", '')
     end
 
     def base64?(string)
       string.is_a?(String) && Base64.strict_encode64(Base64.decode64(string)) == string
     end