Handle termios errno

sbotc.c

@@ -1140,11 +1140,11 @@ do_tcp_connect:
 	if (raw) {
 		struct termios raw_tc;
 		rc = tcgetattr(STDIN_FILENO, &orig_tc);
-		if (rc < 0) warnx("tcgetattr");
+		if (rc < 0) warn("tcgetattr");
 		raw_tc = orig_tc;
 		raw_tc.c_lflag &= ~(ICANON | ECHO);
 		rc = tcsetattr(STDIN_FILENO, TCSANOW, &raw_tc);
-		if (rc < 0) warnx("tcgetattr");
+		if (rc < 0) warn("tcgetattr");
 	}
 
 	switch (type) {
@@ -1168,7 +1168,7 @@ do_tcp_connect:
 
 	if (raw) {
 		rc = tcsetattr(STDIN_FILENO, TCSANOW, &orig_tc);
-		if (rc < 0) warnx("tcsetattr");
+		if (rc < 0) warn("tcsetattr");
 	}
 
 	ps_goodbye(&bs);