/usr/share/binfmts/sbcl is in sbcl 2:1.3.1-1ubuntu2.
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 | # This executes executable files that start with "# FASL." using the
# specified sbcl wrapper script
#
# -- René van Bevern <rvb@pro-linux.de>, Sun Aug 28 15:15:49 2005
package sbcl
interpreter /usr/lib/sbcl/sbcl-run
magic # FASL\x0a
|