TTY: Treat carriage return as newline

Before this change, more-prompts and input text -prompts could not
be accepted with carriage return. Now, just like in menus, carriage
return is treated the same as a newline.

To test, use 'stty -icrnl'

win/tty/wintty.c

@@ -1167,6 +1167,8 @@ tty_askname()
         while ((c = tty_nhgetch()) != '\n') {
             if (c == EOF)
                 c = '\033';
+            if (c == '\r')
+                break;
             if (c == '\033') {
                 ct = 0;
                 break;