Fixing Fatal log for sTag and makefile custom docker properties

Change-Id: Ibe3111d330713c381ded6ba97f2b164fe08f7d07
diff --git a/Makefile b/Makefile
index 08808f2..390b43b 100644
--- a/Makefile
+++ b/Makefile
@@ -19,9 +19,9 @@
 
 ## Docker related
 DOCKER_TAG  			?= ${VERSION}
-DOCKER_REPOSITORY  		?= ""
-DOCKER_REGISTRY 		?= ""
-DOCKER_RUN_ARGS			?= ""
+DOCKER_REPOSITORY  		?=
+DOCKER_REGISTRY 		?=
+DOCKER_RUN_ARGS			?=
 DOCKER_PORTS			?= -p 50070:50070 -p 50060:50060 -p 50071:50071 -p 50072:50072 -p 50073:50073 -p 50074:50074 -p 50075:50075
 TYPE                            ?= minimal
 
diff --git a/internal/bbsim/devices/uni_port.go b/internal/bbsim/devices/uni_port.go
index eeda028..c60ed7a 100644
--- a/internal/bbsim/devices/uni_port.go
+++ b/internal/bbsim/devices/uni_port.go
@@ -164,7 +164,7 @@
 				// check we're not going over
 				if nextStag[s.Name] > 4096 {
 					uni.logger.WithFields(log.Fields{
-						"cTag":    nextCtag[s.Name],
+						"sTag":    nextStag[s.Name],
 						"Service": s.Name,
 					}).Fatal("s-tag-limit-reached-too-many-subscribers")
 				}