This file is indexed.

postinst is in llvm-3.5-runtime 1:3.5-4ubuntu2~trusty2.

This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.

The actual contents of the file can be viewed below.

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#!/bin/sh -e

if test "$1" = "configure"; then
    if test -x /usr/sbin/update-binfmts; then
        update-binfmts --import llvm-3.5-runtime.binfmt || true
    fi
fi