-.SH DIAGNOSTICS
-When -z is used, exit status is either 5 if the compare is false, or 6
-when the compare is true. Errors result in other non-zero values.
-.br
-When -z is not used, exit status is zero if no errors occur.
-Errors result in a non-zero exit status and
-a diagnostic message being written to standard error.
-.SH BUGS
-Should have a way to specify a url for options or for large binary
-file compares.
+.SH LIMITATIONS
+Requiring the value be passed on the command line is limiting
+and introduces some security concerns. The command should support
+a mechanism to specify the location (file name or URL) to read
+the value from.