-\fIMhl\fR is a \fInmh\fR command for filtering and/or displaying text
-messages. It is the default method of displaying text messages for
-\fInmh\fR (it is the default \fIshowproc\fR).
-
-As with \fImore\fR, each of the messages specified as arguments (or
-the standard input) will be output. If more than one message file is
-specified, the user will be prompted prior to each one, and a <RETURN>
-or <EOT> will begin the output, with <RETURN> clearing the screen (if
-appropriate), and <EOT> (usually CTRL\-D) suppressing the screen clear.
-An <INTERRUPT> (usually CTRL\-C) will abort the current message output,
-prompting for the next message (if there is one), and a <QUIT> (usually
-CTRL-\\) will terminate the program (without core dump).
-
-The `\-bell' option tells \fImhl\fR to ring the terminal's bell at the
-end of each page, while the `\-clear' option tells \fImhl\fR to clear the
-scree at the end of each page (or output a formfeed after each message).
-Both of these switches (and their inverse counterparts) take effect only
-if the profile entry \fImoreproc\fR is defined but empty, and \fImhl\fR
-is outputting to a terminal. If the \fImoreproc\fR entry is defined and
-non-empty, and \fImhl\fR is outputting to a terminal, then \fImhl\fR will
-cause the \fImoreproc\fR to be placed between the terminal and \fImhl\fR
-and the switches are ignored. Furthermore, if the `\-clear' switch is
-used and \fImhl's\fR output is directed to a terminal, then \fImhl\fR
-will consult the \fB$TERM\fR and \fB$TERMCAP\fR environment variables
-to determine the user's terminal type in order to find out how to clear
-the screen. If the `\-clear' switch is used and \fImhl's\fR output is
-not directed to a terminal (e.g., a pipe or a file), then \fImhl\fR will
-send a formfeed after each message.
-
-To override the default \fImoreproc\fR and the profile entry, use the
-`\-moreproc\ program' switch. Note that \fImhl\fR will never start a
-\fImoreproc\fR if invoked on a hardcopy terminal.
-
-The `\-length\ length' and `\-width\ width' switches set the screen
-length and width, respectively. These default to the values indicated
-by \fB$TERMCAP\fR, if appropriate, otherwise they default to 40 and
-80, respectively.
-
-The default format file used by \fImhl\fR is called \*(lqmhl.format\*(rq.
-\fImhl\fR will first search for this file in the user's \fInmh\fR
-directory, and will then search in the directory %etcdir%. This default
-can be changed by using the `\-form\ formatfile' switch.
-
-Finally, the `\-folder\ +folder' switch sets the \fInmh\fR folder name,
-which is used for the \*(lqmessagename:\*(rq field described below. The
-environment variable \fB$mhfolder\fR is consulted for the default value,
-which \fIshow\fR, \fInext\fR, and \fIprev\fR initialize appropriately.
-
-\fIMhl\fR operates in two phases: 1) read and parse the format file, and
+.B mhl
+is an
+.B nmh
+command for filtering and/or displaying text messages.
+It is the default method of displaying text messages for
+.B nmh
+(it is the default
+.IR showproc ).
+.PP
+As with
+.BR more ,
+each of the messages specified as arguments (or the standard input) will be
+output. If more than one message file is specified, the user will be
+prompted prior to each one, and a <RETURN> or <EOT> will begin the output,
+with <RETURN> clearing the screen (if appropriate), and <EOT> (usually
+CTRL-D) suppressing the screen clear. An <INTERRUPT> (usually CTRL-C) will
+abort the current message output, prompting for the next message (if there
+is one), and a <QUIT> (usually CTRL-\) will terminate the program (without
+core dump).
+.PP
+The
+.B \-bell
+option tells
+.B mhl
+to ring the terminal's bell at the end of each page, while the
+.B \-clear
+option tells
+.B mhl
+to clear the screen at the end of each page (or output a formfeed after
+each message). Both of these switches (and their inverse counterparts)
+take effect only if the profile entry
+.I moreproc
+is defined but empty, and
+.B mhl
+is outputting to a terminal. If the
+.I moreproc
+entry is defined and non-empty, and
+.B mhl
+is outputting to a terminal, then
+.B mhl
+will cause the
+.I moreproc
+to be placed between the terminal and
+.B mhl
+and the switches are ignored. Furthermore, if the
+.B \-clear
+switch is
+used and
+.IR mhl 's
+output is directed to a terminal, then
+.B mhl
+will consult the TERM and TERMCAP environment variables to determine
+the user's terminal type in order to find out how to clear the screen.
+If the
+.B \-clear
+switch is given and
+.BR mhl 's
+output is not directed to a terminal (e.g., a pipe or a file), then
+.B mhl
+will send a formfeed after each message.
+.PP
+To override the default
+.I moreproc
+and the profile entry, use the
+.B \-moreproc
+.I program
+switch. Note that
+.B mhl
+will never start a
+.I moreproc
+if invoked on a hardcopy terminal.
+.PP
+The
+.B \-length
+.I length
+and
+.B \-width
+.I width
+switches set the screen length and width, respectively.
+These default to the values indicated by TERMCAP, if appropriate, otherwise
+they default to 40 and 80, respectively.
+.PP
+The default format file used by
+.B mhl
+is called
+.RI \*(lq mhl.format \*(rq.
+.B mhl
+will first search for this file in the user's
+.B nmh
+directory, and will then search in the directory
+.IR %nmhetcdir% .
+This default can be changed by using the
+.B \-form
+.I formatfile
+switch.
+.PP
+Finally, the
+.B \-folder
+.I +folder
+switch sets the
+.B nmh
+folder name, which is used for the \*(lqmessagename:\*(rq field described below.
+The environment variable
+.B $mhfolder
+is consulted for the default value, which
+.BR next ,
+.BR show ,
+and
+.B prev
+initialize appropriately.
+.PP
+.B mhl
+operates in two phases: 1) read and parse the format file, and
projects / nmh / blobdiff