fix logic error

scripts/docker-lotus-miner-entrypoint.sh

@@ -1,19 +1,24 @@
 #!/usr/bin/env bash
 
 if [ ! -z $DOCKER_LOTUS_MINER_INIT ]; then
-	GATE="$LOTUS_PATH"/date_initialized
+	GATE="${LOTUS_MINER_PATH}/date_initialized"
 
 	# Don't init if already initialized.
-	if [ -f "$GATE" ]; then
+	if [ ! -f "${GATE}" ]; then
+		echo starting init
+		eval "/usr/local/bin/lotus-miner init ${DOCKER_LOTUS_MINER_INIT_ARGS}"
+		if [ $? == 0 ]
+			then
+				echo lotus-miner init successful
+				date > "$GATE"
+			else
+				echo lotus-miner init unsuccessful
+				exit 1
+		fi
+	else
 		echo lotus-miner already initialized.
-		exit 0
 	fi
 
-	echo starting init
-	/usr/local/bin/lotus-miner init
-
-	# Block future inits
-	date > "$GATE"
 fi
 
 exec /usr/local/bin/lotus-miner $@