apache2-suexec-custom 2.4.18-2ubuntu3.14 (amd64 binary) in ubuntu xenial

 Provides a customizable version of the suexec helper program for mod_suexec.
 This is not the version from upstream, but can be configured with a
 configuration file.
 .
 If you do not need non-standard document root or userdir settings, it is
 recommended that you use the standard suexec helper program from the
 apache2-suexec-pristine package instead.