docs: removed unnecessary comments

docs/str.1

@@ -9,13 +9,13 @@
 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
@@ -23,7 +23,7 @@ The tests in this program are equivalent to the functions with the same names in
 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.
 
@@ -34,20 +34,20 @@ When invoked incorrectly, a debug message will be printed and the program will
 exit with the appropriate sysexits.h(3) error code.
 .\"
 .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
 .MT trinity@trinity.moe
 .ME .
 .\"
 .SH COPYRIGHT
-.\"
+
 Copyright © 2023 DTB. License AGPLv3+: GNU AGPL version 3 or later
 <https://gnu.org/licenses/gpl.html>.
 .\"