Accept and ignore the -T flag for compatibility.
--- busybox/miscutils/less.c.orig	2021-08-10 22:16:57.493134340 +0300
+++ busybox/miscutils/less.c	2021-08-10 22:18:15.421458884 +0300
@@ -179,6 +179,7 @@
 	FLAG_F = 1 << 6,
 	FLAG_S = (1 << 7) * ENABLE_FEATURE_LESS_TRUNCATE,
 	FLAG_R = (1 << 8) * ENABLE_FEATURE_LESS_RAW,
+	FLAG_T = 1 << 9,
 /* hijack command line options variable for internal state vars */
 	LESS_STATE_MATCH_BACKWARDS = 1 << 15,
 };
@@ -1807,6 +1808,7 @@
 int less_main(int argc, char **argv)
 {
 	char *tty_name;
+	char *str_ignored;
 	int tty_fd;
 
 	INIT_G();
@@ -1820,7 +1822,7 @@
 	getopt32(argv, "EMmN~IF"
 		IF_FEATURE_LESS_TRUNCATE("S")
 		IF_FEATURE_LESS_RAW("R")
-		/*ignored:*/"sX"
+		/*ignored:*/"sXT:", &str_ignored
 	);
 	argv += optind;
 	num_files = argc - optind;