[VOL-2356]core log_level command line argument should take log level names not int value

Change-Id: Ifc9ca5aa6d2b40e068e0ecad845a788edad0a3a1
diff --git a/go.sum b/go.sum
index 7c9567a..64bb746 100644
--- a/go.sum
+++ b/go.sum
@@ -190,12 +190,10 @@
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