Format string bug in ppmtolss16

Binary package hint: syslinux

/usr/bin/ppmtolss16 have format string bug .

test case :
emanuel@emanuel-desktop /tmp>>mkdir %999999999999999s
emanuel@emanuel-desktop /tmp>>/tmp/%999999999999999s/../../usr/bin/ppmtolss16 < /home/emanuel/Download/lantern.ppm
Integer overflow in format string for prtf at /tmp/%999999999999999s/../../usr/bin/ppmtolss16 line 297.

I take the picture from :
http://cms.brookes.ac.uk/staff/SharonCurtis/teaching/archives/fp/imageplay/images/lantern.ppm

the bug can be found at :
if ( $lost ) {
    printf STDERR
 "$0: Warning: color palette truncated (%d colors ignored)\n", $lost;
}

fix can be :
printf STDERR "%s: Warning: color palette truncated (%d colors ignored)\n", $0 , $lost;