Commit
3ea0c581844689ab didn't go far enough in pruning the input.
When Porting/checkAUTHORS.pl is invoked with --tap it uses
parse_commits_from_stdin_authors() instead of parse_commits_from_stdin(),
which only looks for lines matching /^Author:/
This reduces runtime by a further 8%.
find_git_or_skip('all');
# This is the subset of "pretty=fuller" that checkAUTHORS.pl actually needs:
-system("git log --pretty=format:'commit %H%nAuthor: %an <%ae>%nAuthor Date:%nCommit: %cn <%ce>%n' | $^X Porting/checkAUTHORS.pl --tap -");
+system("git log --pretty=format:'Author: %an <%ae>%n' | $^X Porting/checkAUTHORS.pl --tap -");
# EOF