[PATCH 0/4] t/lib-httpd ssl fixes

While chasing down a possible HTTP/2 problem in our test suite (which turns out not to be a Git bug, I think), I tried running the tests with LIB_HTTPD_SSL=1, as TLS affects HTTP/2 upgrade.

Sadly, apache would not start at all with our ssl config. It looks like this has probably been broken for many years, depending on your apache and openssl versions.

The final two patches here fix ssl problems I found. The first two patches drop support for older apache. This yields some minor cleanups, and makes the ssl fixes slightly easier. I've cc'd Todd as the last person to express support for Apache 2.2, in 2017. I'm hoping even CentOS has moved on by now, but we'll see. :)

  [1/4]: t/lib-httpd: bump required apache version to 2.2
  [2/4]: t/lib-httpd: bump required apache version to 2.4
  [3/4]: t/lib-httpd: drop SSLMutex config
  [4/4]: t/lib-httpd: increase ssl key size to 2048 bits

 t/lib-httpd.sh          | 11 +++++++----
 t/lib-httpd/apache.conf | 31 ++++---------------------------
 t/lib-httpd/ssl.cnf     |  2 +-
 3 files changed, 12 insertions(+), 32 deletions(-)

-Peff