From snapshot 6.1-20180630

diff --git a/progs/tput.c b/progs/tput.c

index fd051eb4..88e75799 100644

--- a/progs/tput.c

+++ b/progs/tput.c

@@ -293,7 +293,7 @@ main(int argc, char **argv)

     term = getenv("TERM");

-    while ((c = getopt(argc, argv, "ST:V")) != -1) {

+    while ((c = getopt(argc, argv, "ST:Vx")) != -1) {

 	switch (c) {

 	case 'S':

 	    cmdline = FALSE;