bin/autoproj_bootstrap in autoproj-1.9.0.rc7 vs bin/autoproj_bootstrap in autoproj-1.9.0

@@ -855,12 +855,12 @@
 
             if @operating_system.nil?
                 # Need to do some heuristics unfortunately
                 @operating_system =
                     if File.exists?('/etc/debian_version')
-                        codenames = [File.read('/etc/debian_version').strip]
-                        if codenames.first =~ /sid/
-                            versions = codenames + ["unstable", "sid"]
+                        versions = [File.read('/etc/debian_version').strip]
+                        if versions.first =~ /sid/
+                            versions = ["unstable", "sid"]
                         end
                         [['debian'], versions]
                     elsif File.exists?('/etc/fedora-release')
                         release_string = File.read('/etc/fedora-release').strip
                         release_string =~ /Fedora release (\d+)/