docs: updates to use man(7) macros to fix formatting

docs/str.1

@@ -3,28 +3,27 @@
 .\"
 .\" 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/>.
-
+.\"
 .TH STR 1
-
 .SH NAME
-
 str \(en test the character types of string arguments
-
+.\"
 .SH SYNOPSIS
-
+.\"
 str
 .RB [ type ]
 .RB [ string... ]
-
+.\"
 .SH DESCRIPTION
-
+.\"
 Test string arguments.
 
 The tests in this program are equivalent to the functions with the same names in
-ctype.h(0p) and are the methods by which string arguments are tested.
-
+.BR ctype.h (0p)
+and are the methods by which string arguments are tested.
+.\"
 .SH DIAGNOSTICS
-
+.\"
 If all tests pass, the program will exit with an exit code of 0. If any of the
 tests fail, the program will exit unsuccessfully with an error code of 1.
 
@@ -33,23 +32,26 @@ tests.
 
 When invoked incorrectly, a debug message will be printed and the program will
 exit with the appropriate sysexits.h(3) error code.
-
-.SH BUGS
-
+.\"
+.SH CAVEATS
+.\"
 There’s no way of knowing which argument failed the test without re-testing
 arguments individually.
 
 If a character in a string isn't valid ASCII str will exit unsuccessfully.
-
+.\"
 .SH AUTHOR
-
-Written by DTB <trinity@trinity.moe>.
-
+.\"
+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/gpl.html>.
-
+.\"
 .SH SEE ALSO
-
-ctype(3p), strcmp(1), ascii(7)
+.BR ctype (3p),
+.BR strcmp(1),
+.BR ascii(7)