[BUG] missing header names in raw stats output

qlimit, pid, iid and sid were missing from the raw stats output
diff --git a/src/dumpstats.c b/src/dumpstats.c
index b38cd6c..fd16a63 100644
--- a/src/dumpstats.c
+++ b/src/dumpstats.c
@@ -188,7 +188,8 @@
 			     "ereq,econ,eresp,"
 			     "wretr,wredis,"
 			     "status,weight,act,bck,"
-			     "chkfail,chkdown,lastchg,downtime,"
+			     "chkfail,chkdown,lastchg,downtime,qlimit,"
+			     "pid,iid,sid,"
 			     "\n");
 			
 		if (buffer_write_chunk(rep, &msg) != 0)