File _patchinfo of Package patchinfo.17678

<patchinfo incident="17678">
  <issue tracker="bnc" id="1178823">libxml2 gets slow in schema validation when the XML file grows</issue>
  <packager>pmonrealgonzalez</packager>
  <rating>moderate</rating>
  <category>recommended</category>
  <summary>Recommended update for libxml2</summary>
  <description>This update for libxml2 fixes the following issues:

Avoid quadratic checking of identity-constraints, speeding up XML validation (bsc#1178823)
* key/unique/keyref schema attributes currently use quadratic loops
  to check their various constraints (that keys are unique and that
  keyrefs refer to existing keys).
* This fix uses a hash table to avoid the quadratic behaviour.
</description>
</patchinfo>