Battle-harden ODF implementer notes script

- make sure multiple commit hashes per line are all extracted
- adjust cut-off date to May 18th, when Michael had finished
  adding missing implementer notes

Change-Id: Ieb689442369792d701762d4325c73f17d2f3f703
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/95541
Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
diff --git a/bin/check-implementer-notes.py b/bin/check-implementer-notes.py
index 378c16a..10b7c16 100755
--- a/bin/check-implementer-notes.py
+++ b/bin/check-implementer-notes.py
@@ -11,7 +11,7 @@ wiki_pages = [

# get all commit hashes mentioned in implementer notes
wiki_commit_hashes = {}
query = re.compile('\{\{commit\|(\\w+).*\}\}', re.IGNORECASE)
query = re.compile('\{\{commit\|(\\w+)\|\\w*\|\\w*\}\}', re.IGNORECASE)
for page in wiki_pages:
    r = http.request('GET', page)
    data = json.loads(r.data.decode('utf-8'))
@@ -21,10 +21,10 @@ for page in wiki_pages:

# get all commits that change core/schema/* - and are _not_ mentioned
# in the wiki page
# Cut-off is Jan 1st 2020, when we started cleaning this up
# Cut-off is May 18th 2020, when Michael Stahl had finished cleaning this up
for commit in subprocess.check_output(
        ['git', '--no-pager', '-C', sys.path[0]+'/..', 'log',
         '--since=2020-01-01', '--format=%H', '--', 'schema/'],
         '--since=2020-05-18', '--format=%H', '--', 'schema/'],
        stderr=subprocess.STDOUT).decode("utf-8").split("\n"):
    if commit != '' and commit not in wiki_commit_hashes:
        print('missing commit: %s' % commit)