ITS#8320 mdb_load: fix loading data from simple text files

mdb_load -T was supposed to read escaped text, but 21b51cb7 "Add mdb_load"
made it read hex.

libraries/liblmdb/mdb_load.c

@@ -327,7 +327,7 @@ int main(int argc, char *argv[])
 			putflags = MDB_NOOVERWRITE|MDB_NODUPDATA;
 			break;
 		case 'T':
-			mode |= NOHDR;
+			mode |= NOHDR | PRINT;
 			break;
 		default:
 			usage();