all: formatting; mm(1): fixes speed, simplicity; docs/dj.1: grammar, typos, etc.

docs/mm.1

@@ -1,4 +1,5 @@
 .\" Copyright (c) 2024 DTB <trinity@trinity.moe>
+.\" Copyright (c) 2024–2025 Emma Tebibyte <emma@tebibyte.media>
 .\"
 .\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
 .\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
@@ -10,7 +11,7 @@ mm \(en middleman
 .SH SYNOPSIS
 
 mm
-.RB [ -aetu ]
+.RB [ -aet ]
 .RB [ -i\ input ]
 .RB [ -o\ output ]
 .\"
@@ -26,16 +27,14 @@ Opens outputs for appending rather than updating.
 Use the standard error as an output.
 .IP \fB-t\fP
 Causes outputs to be overwritten instead of being truncated.
-.IP \fB-u\fP
-Ensures neither input or output will be buffered.
 .IP \fB-i\fP\ \fIinput\fP
 Opens a path as an input. If one or more of the input files is \(lq-\(rq or if
 no inputs are specified, the standard input shall be used. If specified as the
 last option and if there are trailing arguments to the program, they shall be
 appended to the list of files to use as inputs.
 .IP \fB-o\fP\ \fIoutput\fP
-Opens a path as an output. If one or more of the output files is \(lq-\(rq or if
-no outputs are specified and the
+Opens a path as an output. If one or more of the output files is \(lq-\(rq or
+if no outputs are specified and the
 .B -e
 option is not specified, the standard output shall be used. If specified as the
 last option and if there are trailing arguments to the program, they shall be
@@ -43,7 +42,7 @@ appended to the list of files to use as outputs.
 .\"
 .SH DIAGNOSTICS
 
-If an output cannot be written to, an error occurs; however, exiting will be 
+If an output cannot be written to, an error occurs; however, exiting will be
 deferred until writing to any other specified outputs completes.
 
 When an error is encountered, a diagnostic message is printed and the program
@@ -57,10 +56,30 @@ The
 .BR cat (1p)
 and
 .BR tee (1p)
-programs specified in POSIX together provide similar functionality. The
+programs specified in \*(Px together provide similar functionality. The
 separation of the two sets of functionality into separate APIs seemed
 unncessary.
 .\"
+.SH HISTORY
+
+This utility originally had a \fB-u\fP option for compatibility with cat(1p),
+but this option is almost always default behavior in practice; therefore, it
+was dropped both for simplicity and to expand the
+.BR dj (1)
+utility\(cqs niche.
+.\"
+.SH AUTHOR
+
+Written by DTB
+.MT trinity@trinity.moe
+.ME .
+.\"
+.SH COPYRIGHT
+
+Copyright © 2023 DTB. License AGPLv3+: GNU AGPL version 3 or later
+<https://gnu.org/licenses/agpl.html>.
+.\"
+.\"
 .SH COPYRIGHT
 
 Copyright \(co 2024 DTB. License AGPLv3+: GNU AGPL version 3 or later