Don't print an error report when someone sends an interrupt signal.

lib/cocoapods/command.rb

@@ -54,9 +54,13 @@ module Pod
     end
 
     def self.run(*argv)
-      begin
       Setup.new(ARGV.new()).run_if_needed
       parse(*argv).run
+
+    rescue Interrupt
+      puts "[!] Cancelled".red
+      Config.instance.verbose? ? raise : exit(1)
+
     rescue Exception => e
       if e.is_a?(Informative)
         puts e.message
@@ -66,7 +70,6 @@ module Pod
       end
       exit 1
     end
-    end
 
     def self.parse(*argv)
       argv = ARGV.new(argv)