-#%in the description field indicates that the string is passed through tparm with
-#%parms as given (#\fIi\fP).
+#%in the description field indicates that the string is passed
+#%through \fBtparm\fP(3X) with parameters as given (#\fIi\fP).
+#%.IP
+#%If no parameters are listed in the description,
+#%passing the string through \fBtparm\fP(3X) may give unexpected results,
+#%e.g., if it contains percent (%%) signs.