[FAB-15432] Rename receiver name in logging
[FAB-15432] Rename receiver name in logging

Rename receiver in logging.go from s to l.

FAB-15432 #done

Change-Id: I4cfab5b13fdab97993d3bda3a2790dc71610c5f3
Signed-off-by: Chongxin Luo <7c0175c1e9b282afeb442298363614962e031204@ibm.com>

jimthematrix/fabric,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb,manish-sethi/fabric,hyperledger/fabric,stemlending/fabric,binhn/fabric,hyperledger/fabric,binhn/fabric,binhn/fabric,stemlending/fabric,muralisrini/fabric,muralisrini/fabric,manish-sethi/fabric-sidedb,stemlending/fabric,stemlending/fabric,muralisrini/fabric,jimthematrix/fabric,manish-sethi/fabric,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb