Fix error handling around ssl_*_protocol_version settings
Fix error handling around ssl_*_protocol_version settings

In case of a reload, we just want to LOG errors instead of FATAL when
processing SSL configuration, but the more recent code for the
ssl_*_protocol_version settings didn't behave like that.

Author: Daniel Gustafsson <3d0f3b9ddcacec30c4008c5e030e6c13a478cb4f@yesql.se>
Reviewed-by: Michael Paquier <17b9e1c64588c7fa6419b4d29dc1f4426279ba01@paquier.xyz>

xinzweb/gpdb,adam8157/gpdb,lisakowen/gpdb,greenplum-db/gpdb,adam8157/gpdb,lisakowen/gpdb,50wu/gpdb,lisakowen/gpdb,greenplum-db/gpdb,adam8157/gpdb,adam8157/gpdb,lisakowen/gpdb,adam8157/gpdb,xinzweb/gpdb,greenplum-db/gpdb,xinzweb/gpdb,xinzweb/gpdb,50wu/gpdb,adam8157/gpdb,xinzweb/gpdb,50wu/gpdb,50wu/gpdb,xinzweb/gpdb,50wu/gpdb,greenplum-db/gpdb,xinzweb/gpdb,50wu/gpdb,greenplum-db/gpdb,lisakowen/gpdb,lisakowen/gpdb,xinzweb/gpdb,50wu/gpdb,adam8157/gpdb,adam8157/gpdb,50wu/gpdb,greenplum-db/gpdb,greenplum-db/gpdb,greenplum-db/gpdb,lisakowen/gpdb,lisakowen/gpdb