fix typo

Author: Dimka Tsurko

scripts/memoryConfig.sh

@@ -156,7 +156,7 @@ fi
 		ARGS=("-XX:G1PeriodicGCInterval=${G1PERIODIC_GC_INTERVAL}" "${ARGS[@]}");
 	fi
 	if ! echo ${ARGS[@]} | grep -q "G1PeriodicGCSystemLoadThreshold"; then
-		ARGS=("-XX:G1PeriodicGCSystemLoadThreshold=${G1PERIODIC_GC_SYS_LOAD_THRESHOLDB}" "${ARGS[@]}");
+		ARGS=("-XX:G1PeriodicGCSystemLoadThreshold=${G1PERIODIC_GC_SYS_LOAD_THRESHOLD}" "${ARGS[@]}");
 	fi
     else
 	if ! echo ${ARGS[@]} | grep -q "\-javaagent\:[^ ]*jelastic\-gc\-agent\.jar"