Typo in comment of auto_explain.c

[Ilia Evdokimov]

Hi everyone,

I found typo in comment auto_explain.c line 282 (/* Enable per-node 
instrumentation iff log_analyze is required. */).

Not 'iff' but 'if'.

--
Best regards,
Ilia Evdokimov,
Tantor Labs LLC.