filter-github-emails: Catch more status changes

Also catch the case where an issue was closed in a commit message, e.g.:

| Closed #123 via c5dc81cd28a9491115b4d13b959b0fc8e2df9a6c.

1 files changed, 1 insertions, 0 deletions

diff --git a/libexec/filter-github-emails b/libexec/filter-github-emails
index 95a4141..7a05a05 100755
--- a/libexec/filter-github-emails
+++ b/libexec/filter-github-emails
@@ -200,6 +200,7 @@ sub is_github_status_change {
 
         if ($body =~ tr/\n// == 5) {
                 return 1 if $body =~ /^(?:Closed|Reopened) #\d+\.$/m;
+                return 1 if $body =~ /^Closed #\d+ via [0-9a-f]{40}\.$/m;
         }
         return 0;
 }