Updates ckandumper: 1831acd Dump global stats to a file

diff --git a/ckandumper b/ckandumper
index bc11bb55f4b3affa6c6dee16e6a8b5ff9d3cd627..1831acd944f547ec63ffc1a8207d16eabb1a4b58 160000 (submodule)
--- a/ckandumper
+++ b/ckandumper
@@ -1 +1 @@
-Subproject commit bc11bb55f4b3affa6c6dee16e6a8b5ff9d3cd627
+Subproject commit 1831acd944f547ec63ffc1a8207d16eabb1a4b58