exe/git-wip in git-wip-0.4 vs exe/git-wip in git-wip-0.5

@@ -5,11 +5,11 @@
   puts 'git wip [branch-name] [issue-number]'
   exit 2
 end
 
 if ARGV[1]
-  branch_name = "#{ARGV[0]}/#{ARGV[1]}"
   issue_number = "##{ARGV[1]}"
+  branch_name = "#{ARGV[1]}-#{ARGV[0]}"
   issue_title = `hub issue | grep #{ARGV[1]} | xargs`
 else
   branch_name = ARGV[0]
   issue_number = ''
   issue_title = "Fix #{branch_name}"