*: hopefully all setup_common_bufsiz() are in place

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

miscutils/chat.c

@@ -286,9 +286,10 @@ int chat_main(int argc UNUSED_PARAM, char **argv)
 			    && poll(&pfd, 1, timeout) > 0
 			    && (pfd.revents & POLLIN)
 			) {
-#define buf bb_common_bufsiz1
 				llist_t *l;
 				ssize_t delta;
+#define buf bb_common_bufsiz1
+				setup_common_bufsiz();
 
 				// read next char from device
 				if (safe_read(STDIN_FILENO, buf+buf_len, 1) > 0) {