[PATCH] Process update info <collection> element correctly

[Libor Pechacek]

Attribute `short' and element `name' are optional in collections.  Take that
into account when generating XML.

Signed-off-by: Libor Pechacek <lpechacek at suse.cz>
---
 yum/update_md.py | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/yum/update_md.py b/yum/update_md.py
index 7dcfce550990..19ed43718870 100644
--- a/yum/update_md.py
+++ b/yum/update_md.py
@@ -380,9 +380,12 @@ class UpdateNotice(object):
         if self._md['pkglist']:
             msg += """  <pkglist>\n"""
             for coll in self._md['pkglist']:
-                msg += """    <collection short="%s">\n      <name>%s</name>\n""" % (
-                      to_xml(coll['short'], attrib=True),
-                      to_xml(coll['name']))
+                msg += """    <collection"""
+                if 'short' in coll:
+                    msg += """ short="%s\"""" % (to_xml(coll['short'], attrib=True))
+                msg += """>\n"""
+                if 'name' in coll:
+                    msg += """      <name>%s</name>\n""" % (to_xml(coll['name']))
   
                 for pkg in coll['packages']:
                     msg += """      <package arch="%s" name="%s" release="%s" src="%s" version="%s" epoch="%s">
-- 
1.7.12.4