Use a colon instead of an underscore for the upragg stats seperator
Use a colon instead of an underscore for the upragg stats seperator

Change-Id: Ia845cc7fa8a213fa6bb64faadeb6978bb12f5525
Reviewed-on: http://review.couchbase.org/37289
Reviewed-by: Sriram Ganesan <fde85c3124eed34938bb85159f430bf7e5b650f6@couchbase.com>
Reviewed-by: Chiyoung Seo <fcffc23db27b19ee4ebba46695ee6b50e09216a2@couchbase.com>
Reviewed-by: Sundararaman Sridharan <333a3f71d3ad6e01fc953c4fa06bc1f3cd014910@couchbase.com>
Tested-by: Sundararaman Sridharan <333a3f71d3ad6e01fc953c4fa06bc1f3cd014910@couchbase.com>

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