- tweak the handle_error docs a bit
- tweak the handle_error docs a bit

Change-Id: Iebe5b13b3a568f3aa0f3ab02a55e2a9cbb4545c7

graingert/sqlalchemy,graingert/sqlalchemy,monetate/sqlalchemy,wujuguang/sqlalchemy,j5int/sqlalchemy,j5int/sqlalchemy,sqlalchemy/sqlalchemy,monetate/sqlalchemy,zzzeek/sqlalchemy,wujuguang/sqlalchemy