REGTEST: ssl: improve the "set ssl cert" test

Improve the test by removing the curl command and using the same proxy
chaining technique as in commit 3ed722f ("REGTEST: ssl: remove curl from
the "add ssl crt-list" test").

A 3rd request was added which must fail, to ensure that the SNI was
effectively removed from HAProxy.

This patch also adds timeouts in the default section, logs on stderr and
fix some indentation issues.
1 file changed