Possible bug renaming roles

[Antonio <psql(at)msux(dot)cjb(dot)net>]

Dear Sirs:

I looked in the pgAdmin web page for a place to report bugs, but I
couldn't find it. So I send it to this list. If I'm wrong, please let me
know.


Bug description:
- When you try to rename a role, you get an error. The underlying sql
sentence seems to be wrong. PgAdmin is trying 	
	ALTER GROUP ROLE "AccTotBDProy" RENAME TO "BDProy_AccTot";
and then the user gets the error


Expected results:
- It seems pgAdmin should try
	ALTER ROLE "AccTotBDProy" RENAME TO "BDProy_AccTot";
and rename it


I'm available to do whatever tryings are needed. 

Keep up the good work. Thanks for it all!