CLEANUP: ssl: check if a transaction exists once before setting it

trivial patch to fix issue #351

Fixes: bc6ca7ccaa72 ("MINOR: ssl/cli: rework 'set ssl cert' as 'set/commit'")
Reported-by: Илья Шипицин <chipitsine@gmail.com>
Signed-off-by: William Dauchy <w.dauchy@criteo.com>
1 file changed