This file is indexed.

/usr/share/doc/sudo/OPTIONS is in sudo 1.8.21p2-3ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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The following options were used to configure sudo for Debian GNU/Linux.

  --with-all-insults

	Include all the insults in the binary, won't be enabled unless turned
	on in the sudoers file.

  --with-devel

	Force flex and bison runs on each build.

  --with-pam 
	
	Support for pluggable authentication modules.

  --with-fqdn 

	Allow use of fully qualified domain names in the sudoers file.

  --with-logging=syslog
  --with-logfac=authpriv 

	Where logging information goes.

  --with-env-editor 
  --with-editor=/usr/bin/editor

	Honor the EDITOR and VISUAL environment variables.  If they are not
	present, default to the preferred systemwide default editor.

  --with-timeout=15 
  --with-password-timeout=0 
  --with-passprompt="[sudo] password for %p: "

	Allow 15 minutes before a user has to re-type their passord, versus
	the sudo usual default of 5.  Never time out while waiting for a
	password to be typed, this is important to Debian package developers 
	using 'dpkg-buildpackage -rsudo'.  Make it clear which password is 
	requested.

  --disable-root-mailer

	Send mail as the invoking user, not as root.

  --with-sendmail=/usr/sbin/sendmail

	Use Debian policy to know the location of sendmail instead of trying 
	to detect it at build time.

  --with-timedir=/var/lib/sudo
  --mandir=/usr/share/man
  --libexecdir=/usr/lib/sudo

	Comply with Debian policy on suitable paths.

  --with-ldap

	Support for LDAP authentication, in the sudo-ldap package version only.