[fix] Check if processes exist before returning in .findByScript(). Fixes #50

Author: indexzero

lib/forever.js

@@ -283,7 +283,9 @@ forever.findByIndex = function (index, processes) {
 // Finds the process with the specified script name.
 //
 forever.findByScript = function (script, processes) {
-  return processes.filter(function (p) { return p.file === script });
+  return processes 
+    ? processes.filter(function (p) { return p.file === script })
+    : null; 
 };
 
 //