docs: removed unnecessary comments

docs/npc.1

@@ -9,12 +9,12 @@
 npc \(en show non-printing characters
 .\"
 .SH SYNOPSIS
-.\"
+
 npc
 .RB ( -et )
 .\"
 .SH DESCRIPTION
-.\"
+
 Print normally non-printing characters.
 
 The program reads from standard input and writes to standard output, replacing
@@ -26,32 +26,32 @@ followed by the graphical representation for the same character without the
 high bit set.
 .\"
 .SH USAGE
-.\"
+
 .IP -e
 Prints a currency sign ('$') before each line ending.
 .IP -t
 Prints tab characters as '^I' rather than a literal horizontal tab.
 .\"
 .SH DIAGNOSTICS
-.\"
+
 In the event of an error, a debug message will be printed and the program will
 exit with the appropriate
 .BR sysexits.h (3)
 error code.
 .\"
 .SH BUGS
-.\"
+
 The program operates in single-byte chunks regardless of intended encoding.
 .\"
 .SH RATIONALE
-.\"
+
 POSIX currently lacks a way to display non-printing characters in the terminal
 using a standard tool. A popular extension to
 .BR cat (1p),
 the
 .B -v
 option, is the bandage solution GNU and other software suites use.
-.\"
+
 This functionality is a separate tool because its usefulness extends beyond that
 of
 .BR cat (1p).
@@ -61,14 +61,13 @@ of
 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 SEE ALSO
-
 .BR cat (1p),
 .BR cat-v (1)