xt/eml_check_limits: check limits against an inbox

This allows maintainers to easily check limits against the
contents of existing inboxes.  This script covers most of
the new limits enforced by PublicInbox::Eml.

Usage is similar to most xt/*.t scripts:

  GIANT_INBOX_DIR=/path/to/inbox prove -bvw xt/eml_check_limits.t

Setting `TEST_CLASS=PublicInbox::MIME' allows us to check
performance and memory use against the old subclass of
Email::MIME.

1 files changed, 1 insertions, 0 deletions

diff --git a/MANIFEST b/MANIFEST
index 9c804a07..b1512c7a 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -333,6 +333,7 @@ t/x-unknown-alpine.eml
 t/xcpdb-reshard.t
 xt/cmp-msgstr.t
 xt/cmp-msgview.t
+xt/eml_check_limits.t
 xt/git-http-backend.t
 xt/git_async_cmp.t
 xt/mem-msgview.t