github.rb in travis-1.8.13.travis.1152.9

- old
+ new

@@ -1,8 +1,9 @@
 require 'travis/tools/system'
 require 'yaml'
 require 'json'
+require 'gh'
 
 module Travis
   module Tools
     class Github
       TOKEN_SIZE  = 40
@@ -257,10 +258,14 @@
 
       private
 
         def gh_error(error)
           raise error if explode
-          JSON.parse(error.info[:response_body])["message"].to_s
+          if error.info.key? :response_body
+            JSON.parse(error.info[:response_body])["message"].to_s
+          else
+            "Unknown error"
+          end
         end
 
         def debug(line)
           return unless @debug
           @debug.call "Tools::Github: #{line}"