Use hard exit! in TimeoutAction

Author: eregon

spec/mspec/lib/mspec/runner/actions/timeout.rb

@@ -48,7 +48,7 @@ def start
 
               show_backtraces
               if MSpec.subprocesses.empty?
-                exit 2
+                exit! 2
               else
                 # Do not exit but signal the subprocess so we can get their output
                 MSpec.subprocesses.each do |pid|
@@ -81,7 +81,7 @@ def after(state = nil)
 
     if @fail
       STDERR.puts "\n\nThe last example #{@error_message}. See above for the subprocess stacktrace."
-      exit 2
+      exit! 2
     end
   end