OWNERS: adjust matchers

Two changes:

- The proper keyword is 'matchers' and not 'matches'.
- 'exact' only works on a file and not a directory because
  git doesn't track directories.  Switch directory to 'partial_regex'.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I98c1669e06a8572da94d176ab57c6b3179f8f319
diff --git a/OWNERS b/OWNERS
index f82098a..7cd1db4 100644
--- a/OWNERS
+++ b/OWNERS
@@ -20,7 +20,7 @@
 #   * reviewers: A list of individuals who have requested review notification
 #     on the repository.
 #
-#   * matches: A list of specific file/path matches for granular 'owners' and
+#   * matchers: A list of specific file/path matches for granular 'owners' and
 #     'reviewers'.  See 'owners' plugin documentation.
 #
 #   * openbmc: A list of openbmc-specific meta-data about owners and reviewers.
@@ -40,11 +40,11 @@
 - liuxiwei@inspur.com
 - manojkiran.eda@gmail.com
 
-matches:
+matchers:
 - partial_regex: ibm
   owners:
   - sampmisr@in.ibm.com
-- exact: tools/visualize-pdr
+- partial_regex: tools/visualize-pdr
   owners:
   - manojkiran.eda@gmail.com