[Checkins] [zopefoundation/Products.ZCatalog] 29907a: Fix typo

[Jürgen Gmach]

  Branch: refs/heads/jugmac00-fix-typo-in-unindex
  Home:   https://github.com/zopefoundation/Products.ZCatalog
  Commit: 29907a19c2be8db9d310006def8d725dbf09014a
      https://github.com/zopefoundation/Products.ZCatalog/commit/29907a19c2be8db9d310006def8d725dbf09014a
  Author: Jürgen Gmach <juergen.gmach at googlemail.com>
  Date:   2020-02-03 (Mon, 03 Feb 2020)

  Changed paths:
    M src/Products/PluginIndexes/unindex.py

  Log Message:
  -----------
  Fix typo