bin/droid in libis-format-0.9.8 vs bin/droid in libis-format-0.9.10

@@ -1,10 +1,10 @@
 #!/usr/bin/env ruby
 
 require 'libis-format'
 require 'libis-tools'
 
-::Libis::Tools::Config.logger.level = ::Logger::Severity::WARN
+::Libis::Tools::Config.logger.level = :WARN
 
 result = ::Libis::Format::Droid.run ARGV[0]
 
 result.each do |r|
   r.each do |key, value|
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