test-bot: don't repeat creating Bintray packages.

Library/Homebrew/cmd/test-bot.rb

@@ -729,6 +729,8 @@ module Homebrew
         "bottles"
       end
 
+      formula_packaged = {}
+
       Dir.glob("*.bottle*.tar.gz") do |filename|
         # Skip taps for now until we're using Bintray for Homebrew/homebrew
         next if tap
@@ -736,6 +738,7 @@ module Homebrew
         formula = bottle_filename_formula_name filename
         existing_bottle = existing_bottles[formula]
 
+        unless formula_packaged[formula]
           repo_url = "https://api.bintray.com/packages/homebrew/#{repo}"
           package_url = "#{repo_url}/#{formula}"
           unless system "curl", "--silent", "--fail", "--output", "/dev/null", package_url
@@ -745,6 +748,8 @@ module Homebrew
               "-d", "{\"name\":\"#{formula}\"}", repo_url
             puts
           end
+          formula_packaged[formula] = true
+        end
 
         content_url = "https://api.bintray.com/content/homebrew/#{repo}/#{formula}/#{version}/#{filename}"
         content_url += "?publish=1&override=1" if existing_bottle