yum bug fix and enhancement update

Updated yum packages that fix number of bugs and add various enhancements are
now available for Red Hat Enterprise Linux 6.

Yum is a utility that can check for and automatically download and install
updated RPM packages. Dependencies are obtained and downloaded automatically,
prompting the user for permission as necessary.

These updated yum packages include numerous bug fixes and enhancements. Space
precludes documenting all of these changes in this advisory. Users are directed
to the Red Hat Enterprise Linux 6.1 Technical Notes for information on the most
significant of these changes:

https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.1_Technical_Notes/yum.html#RHBA-2011-0602

All users of yum are advised to upgrade to these updated packages, which provide
numerous bug fixes and enhancements.

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

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

590675 - Lock yum for non-root users, so multiple simultaneous runs don't interact badly
604973 - repo file saving error when in repo id is $basearch
605039 - yum history crashes displaying transaction done by user with long username and no GEOCOS fullname
607258 - yum localinstall drpms/foo.drpm leads to Traceback
614023 - rpmdb open failed exception changed (rpm.error vs. TypeError)
615447 - Change the default bugtracker_url (patch from RHEL-5)
623553 - reinstall gets confused when run twice on one package
627290 - yum should treat epoch "None" as epoch "0"
628151 - Z-stream needed on yum installonly kernel-modules handling
630983 - yum not working properly with yum-plugin-versionlock
632391 - /var/cache/yum periodically filling up
633255 - yum self-test fails
633270 - yum cannot handle channel with sha384 checksum
634595 - yum traceback when running concurrent yum and rpm transactions
652750 - RFE: Separate language support and software in 'yum grouplist' output
655281 - yum group's "installation" is confusing for groups with only optional member. Eg. "System administration tools".
659494 - rebase yum, to collect all the bugs/features for 6.1
662712 - RFE: GPG CA keys
663378 - yum --changelog update traceback
669070 - yum manual page: yum clean dbcache section is repeated twice
669746 - runnign with -C as non-root tries to create a lockfile in root's cachedir.
670784 - Traceback in transaction, when _ts_save_file is None (from within anaconda)
677410 - Download sig check now holds the rpmdb ts lock, for all of downloads
678043 - YumBase.pkgSack.searchNevra fails in rhel6.1
679760 - Cannot install >2 GB package on i686 platform
687889 - [abrt] crash in yum-3.2.27-2.fc12: utils.py:108:show_lock_owner:TypeError: 'NoneType' object is unsubscriptable
694394 - yum-3.2.29-13.el6.noarch breaks plugin options
695427 - Add warning for cert. files with the same basename
696720 - "yum reinstall" generates the wrong rpmdb versions, due to not dropping old cached rpmdb entries
700035 - after removing /var/cache/yum/* yum misbehaves

https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.1_Technical_Notes/yum.html#RHBA-2011-0602