strbuf: miniscule style fix

We write one SP on each side of an operator, even inside an [] pair
that computes the array index.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2016-01-13 15:10:45 -08:00
parent 754884255b
commit dce80bd18c