docs: remove unnecessary references to the name of each program

docs/strcmp.1

@@ -18,26 +18,27 @@ strcmp
 
 .SH DESCRIPTION
 
-Strcmp checks whether the given strings are the same.
-Strcmp exits successfully if the strings are identical. Otherwise, strcmp exits
-with the value 1 if an earlier string has a greater byte value than a later
-string (e.g.
+Check whether string arguments are the same.
+
+.SH DIAGNOSTICS
+
+The program will exit successfully if the strings are identical. Otherwise, it
+exits with the value 1 if an earlier string has a greater byte value than a
+later string (e.g.
 .R strcmp b a
 )
 and 255 if an earlier string has a lesser byte value (e.g.
 .R strcmp a b
 ).
 
-.SH DIAGNOSTICS
-
-Strcmp will print an error message and exit unsuccessfully with a status
-described in sysexits(3) if used incorrectly (given less than two operands).
+When invoked incorrectly, a debug message will be printed and the program will
+exit with the appropriate sysexits.h(3) error code.
 
 .SH UNICODE
 
-Strcmp will exit unsuccessfully if the given strings are not identical;
-Unicode strings may need to be normalized if the intent is to check visual
-similarity and not byte similarity.
+The program will exit unsuccessfully if the given strings are not identical;
+therefore, unicode strings may need to be normalized if the intent is to check
+visual similarity and not byte similarity.
 
 .SH RATIONALE
 
@@ -45,7 +46,7 @@ The traditional tool for string comparisons in POSIX and other Unix shells has
 been test(1). This tool also handles integer comparisons and file scrutiny.
 These parts of its functionality have been broken out into multiple utilities.
 
-Strcmp’s functionality may be performed on a POSIX-compliant system with
+This program’s functionality may be performed on a POSIX-compliant system with
 test(1p).
 
 .SH AUTHOR