fix: rs to restart

Always unhook the process.stdin when the child has exited, this allows the `rs` command to be read - otherwise it's ignored.

Fixes remy#648

lib/monitor/run.js

@@ -142,8 +142,7 @@ function run(options) {
 
       // exit the monitor, but do it gracefully
       if (signal === 'SIGUSR2') {
-        // restart
-        restart();
+        return restart();
       } else if (code === 0) { // clean exit - wait until file change to restart
         if (runCmd) {
           utils.log.status('clean exit - waiting for changes before restart');
@@ -161,13 +160,14 @@ function run(options) {
         utils.log.fail('app crashed - waiting for file changes before' +
         ' starting...');
         child = null;
-        if (config.options.restartable) {
-          // stdin needs to kick in again to be able to listen to the
-          // restart command
-          process.stdin.resume();
-        }
       }
     }
+
+    if (config.options.restartable) {
+      // stdin needs to kick in again to be able to listen to the
+      // restart command
+      process.stdin.resume();
+    }
   });
 
   run.kill = function (noRestart, callback) {