Bug #2642 Error in REVOKE grammar

Description:
sql_yacc.yy says:

revoke_command: 
    grant_privileges ON opt_table FROM user_list
    {}
    |
    ALL PRIVILEGES ',' GRANT FROM user_list
    {
      Lex->sql_command = SQLCOM_REVOKE_ALL;
    }
    ;

That is not right.  The name of the privilege is
GRANT OPTION, not GRANT. For example, to
grant this privilege, you can say this:

GRANT GRANT OPTION on ...

But not this:

GRANT GRANT on ...

And to revoke it, you can say this:

REVOKE GRANT OPTION on ...

But not this:

REVOKE GRANT on ...

(See also the definition of the grant_privilege rule.)

How to repeat:
See above.

Suggested fix:
Change to:

revoke_command: 
    grant_privileges ON opt_table FROM user_list
    {}
    |
    ALL PRIVILEGES ',' GRANT OPTION FROM user_list
    {
      Lex->sql_command = SQLCOM_REVOKE_ALL;
    }
    ;

I think Paul knows what he is talking about here.

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next release.

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Additional info:

fixed in 4.1.2