diff --git a/docs/str.1 b/docs/str.1
index c3f7538..d45289a 100644
--- a/docs/str.1
+++ b/docs/str.1
@@ -6,7 +6,7 @@
 .\"
 .TH STR 1 2024-06-06 "Bonsai Core Utilites 0.13.8"
 .SH NAME
-str \(en test the character types of string arguments
+str \(en test string arguments
 .\"
 .SH SYNOPSIS
 
@@ -16,7 +16,7 @@ str
 .\"
 .SH DESCRIPTION
 
-Test string arguments.
+Test the character types of string arguments.
 
 The tests in this program are equivalent to the functions with the same names in
 .BR ctype.h (0p)
@@ -24,11 +24,8 @@ 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.
-
-An empty string will cause an unsuccessful exit as none of its contents pass any
-tests.
+If all tests pass, the program will exit successfully. If any of the tests fail,
+the program will exit unsuccessfully with an error code of 1.
 
 When invoked incorrectly, a debug message will be printed and the program will
 exit with the appropriate
@@ -37,6 +34,9 @@ error code.
 .\"
 .SH CAVEATS
 
+None of an empty string\(cqs contents pass any of the tests, so the program will
+exit unsuccessfully if one is specified.
+
 There\(cqs no way of knowing which argument failed the test without re-testing
 arguments individually.