(set-passwd): old-pwd must match the password of the currently logged

	in person, not of the person whose password is being changed.

doc/Protocol-A.texi

@@ -3124,11 +3124,11 @@ and privilege level set to 6 or higher.
                           new-pwd : @lt{HOLLERITH} )) -> ( );
 @end example
 
-This call is used to set the password of a person.  Providing
-@rarg{old-pwd} matches @rarg{person}'s old password, that person's
-password is changed to @rarg{new-pwd}.  Any person may set it's own
-password.  In addition persons with sufficient privileges may set other
-persons' passwords.
+This call is used to set the password of @rarg{person} to
+@rarg{new-pwd}.  Any person may set it's own password.  In addition
+persons with sufficient privileges may set other persons' passwords.
+The password of the person currently logged in must match
+@rarg{old-pwd}.
 
 @reqexample
 @example