-is doing internally if there is a problem.
-.PP
-A
-\fRDebug\fR
-line consists of the
-\fRDebug\fR
-keyword, followed by the name of the program to debug
-(\fBsudo\fR, \fBvisudo\fR, \fBsudoreplay\fR),
-the debug file name and a comma-separated list of debug flags.
-The debug flag syntax used by
-\fBsudo\fR
-and the
-\fIsudoers\fR
-plugin is
-\fIsubsystem\fR@\fIpriority\fR
-but the plugin is free to use a different format so long as it does
-not include a comma
-(`\&,').
-.PP
-For instance:
-.nf
-.sp
-.RS 6n
-Debug sudo /var/log/sudo_debug all@warn,plugin@info
-.RE
-.fi
-.PP
-would log all debugging statements at the
-\fIwarn\fR
-level and higher in addition to those at the
-\fIinfo\fR
-level for the plugin subsystem.
-.PP
-Currently, only one
-\fRDebug\fR
-entry per program is supported.
-The
-\fBsudo\fR
-\fRDebug\fR
-entry is shared by the
-\fBsudo\fR
-front end,
-\fBsudoedit\fR
-and the plugins.
-A future release may add support for per-plugin
-\fRDebug\fR
-lines and/or support for multiple debugging files for a single
-program.
-.PP
-The priorities used by the
-\fBsudo\fR
-front end, in order of decreasing severity, are:
-\fIcrit\fR, \fIerr\fR, \fIwarn\fR, \fInotice\fR, \fIdiag\fR, \fIinfo\fR, \fItrace\fR
-and
-\fIdebug\fR.
-Each priority, when specified, also includes all priorities higher
-than it.
-For example, a priority of
-\fInotice\fR
-would include debug messages logged at
-\fInotice\fR
-and higher.
-.PP
-The following subsystems are used by the
-\fBsudo\fR
-front-end:
-.TP 12n
-\fIall\fR
-matches every subsystem
-.TP 12n
-\fIargs\fR
-command line argument processing
-.TP 12n
-\fIconv\fR
-user conversation
-.TP 12n
-\fIedit\fR
-sudoedit
-.TP 12n
-\fIexec\fR
-command execution
-.TP 12n
-\fImain\fR
-\fBsudo\fR
-main function
-.TP 12n
-\fInetif\fR
-network interface handling
-.TP 12n
-\fIpcomm\fR
-communication with the plugin
-.TP 12n
-\fIplugin\fR
-plugin configuration
-.TP 12n
-\fIpty\fR
-pseudo-tty related code
-.TP 12n
-\fIselinux\fR
-SELinux-specific handling
-.TP 12n
-\fIutil\fR
-utility functions
-.TP 12n
-\fIutmp\fR
-utmp handling