Fix few formalities in our errata section.

* notes/api-errata/1.8/fs001.txt
  (): Fix typo and enable Id keyword expansion.

* notes/api-errata/1.9/fs001.txt
  (): Use plural to be consistent with other reports.
      Enable Id keyword expansion and use native EOL style.

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1618882 13f79535-47bb-0310-9956-ffa450edef68