Don't nextTick root bailout exit

But, still allow 'bailout' event handlers.

Do this by overriding the tap.bailout function, rather than by setting
an event handler before any user code has a chance to run.

Author: isaacs

lib/root.js

@@ -11,11 +11,10 @@ tap._name = 'TAP'
 
 // No sense continuing after bailout!
 // allow 1 tick for any other bailout handlers to run first.
-tap.on('bailout', function () {
-  process.nextTick(function () {
-    process.exit(1)
-  })
-})
+tap.bailout = function (reason) {
+  Test.prototype.bailout.apply(tap, arguments)
+  process.exit(1)
+}
 
 // need to autoend if a teardown is added.
 // otherwise we may never see process.on('exit')!