User '%1' already has EXECUTE permission

Error constant SQLE_ALREADY_HAS_EXEC_PERMS
ODBC 2 state 42000
ODBC 3 state 42000
Parameter 1 Name of the user that already has EXECUTE permission.
Severity 16
SQLCODE -968
SQLSTATE 42WAB
Sybase error code 13522
 Probable cause