cups bug fix update

Updated cups packages that fix various bugs are now available.

The Common UNIX Printing System (CUPS) provides a portable printing layer for
UNIX operating systems. The CUPS "texttops" filter converts text files to
PostScript.

These updated cups packages fix the following bugs:

* previously, when the printer was removed from the class, the list of class
members was not updated properly. As a result, adding the printer of the same
name to the class resulted in the following error message:

Printer <printer> is already a member of class <class>

With this update, the member list is now updated as expected, and re-adding the
previously removed printer no longer results in the above error. (BZ#581902)

* when the class members were changed, /etc/cups/classes.conf was not always
updated accordingly. This issue has been resolved, and the configuration file is
now always updated as expected. (BZ#594621)

* previously, sending a document to a network printer using the socket URI
scheme could cause the actual printing to be delayed. This was due to the fact
that the socket back-end used to wait for any pending back-channel data, even
though the wait time option was set to zero. With this update, the pertinent
"wait_bc" function call has been removed, and printing the document is no longer
delayed. (BZ#612964)

Users of CUPS are advised to upgrade to these updated packages, which resolve
these issues. After installing this update, the cupsd daemon will be restarted
automatically.

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

581902 - cups class members not updated when removing printers
594621 - cups scheduler do not save classes when deleting a printer
612964 - cups printing to network printers delayed by failure to close connection