remove magic number

examples/fzfimg.sh

@@ -119,9 +119,10 @@ function print_on_winch {
     # also the additional bash process isn't needed
     </dev/tty \
         exec perl -e '
+            require "sys/ioctl.ph";
             while (1) {
                 local $SIG{WINCH} = sub {
-                    ioctl(STDIN, 0x5412, $_) for split "", join " ", @ARGV;
+                    ioctl(STDIN, &TIOCSTI, $_) for split "", join " ", @ARGV;
                 };
                 sleep;
             }' \