Add parent id to worlddump output

Helpful in tracking down some process-doesn't-die problems.

Change-Id: I146910403879c9a85d644bd07a53830ea17ca77d
diff --git a/tools/worlddump.py b/tools/worlddump.py
index 9a62c0d..8dd455c 100755
--- a/tools/worlddump.py
+++ b/tools/worlddump.py
@@ -66,7 +66,7 @@
 Process Listing
 ===============
 """
-    psraw = os.popen("ps auxw").read()
+    psraw = os.popen("ps axo user,ppid,pid,pcpu,pmem,vsz,rss,tty,stat,start,time,args").read()
     print psraw