BUG/MINOR: ssl_ckch: Dump cert transaction only once if show command yield

When loaded SSL certificates are displayed via "show ssl cert" command, the
in-progess transaction, if any, is also displayed. However, if the command
yield, the transaction is re-displayed again and again.

To fix the issue, old_ckchs field is used to remember the transaction was
already displayed.

This patch must be backported as far as 2.2.
1 file changed