[Command::Push] Disable pushing to the master repo

https://github.com/CocoaPods/CocoaPods/issues/2151\#issuecomment-43493702\

Gemfile.lock

@@ -34,7 +34,7 @@ GIT
 
 GIT
   remote: https://github.com/CocoaPods/cocoapods-plugins.git
-  revision: ce2d30ff9bd4570708e51a2bdac4d8de60fe9bfc
+  revision: 413e7ba6c956f798af05db4aa66941c010a1517b
   branch: master
   specs:
     cocoapods-plugins (0.1.1)
@@ -42,7 +42,7 @@ GIT
 
 GIT
   remote: https://github.com/CocoaPods/cocoapods-trunk.git
-  revision: 4dcaed7fc44e5f552985379fece9620d2bf88a53
+  revision: d53eebda39d05bd08fdba5bb2c568b535d3cec4e
   branch: master
   specs:
     cocoapods-trunk (0.0.1)
@@ -52,7 +52,7 @@ GIT
 
 GIT
   remote: https://github.com/CocoaPods/cocoapods-try.git
-  revision: 87294fd83feda93ec242270c452ce8f025429778
+  revision: bd65e634ffe50e37b549ce0a386ff0628289c7ed
   branch: master
   specs:
     cocoapods-try (0.2.0)

lib/cocoapods/command/push.rb

@@ -27,20 +27,16 @@ module Pod
         @allow_warnings = argv.flag?('allow-warnings')
         @local_only = argv.flag?('local-only')
         @repo = argv.shift_argument
-        if @repo.nil?
-          @repo = "master"
-        elsif @repo.end_with? ".podspec"
-          @podspec = @repo
-          @repo = "master"
-        else
-          @podspec = argv.shift_argument
-        end
+        @podspec = argv.shift_argument
         super
       end
 
       def validate!
         super
         help! "A spec-repo name is required." unless @repo
+        if @repo == 'master'
+          help! "To push to the master repo use the `pod trunk push` command"
+        end
       end
 
       def run

cocoapods-integration-specs @ 0bf04d4f

-Subproject commit 801c5e9bb1d9f2ca11ebba09013c7c8a4329d780
+Subproject commit 0bf04d4f4cc3f544f13e27a85227e0a75862a871