/lib/udev/rules.d/60-heimdall-flash.rules is in heimdall-flash 1.4.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | # Set ACLs for console users on Samsung Galaxy S devices
# According to /lib/udev/rules.d/70-udev-acl.rules, we aren't
# supposed to be using udev-acl here; but it's certainly better than marking
# USB devices world-rw...
SUBSYSTEM=="usb", ATTR{idVendor}=="04e8", ATTR{idProduct}=="6601", TAG+="udev-acl"
SUBSYSTEM=="usb", ATTR{idVendor}=="04e8", ATTR{idProduct}=="685d", TAG+="udev-acl"
SUBSYSTEM=="usb", ATTR{idVendor}=="04e8", ATTR{idProduct}=="68c3", TAG+="udev-acl"
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