help.h: fix coding style

We want a space after the `while` keyword.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2018-12-11 06:58:10 -08:00 committed by Junio C Hamano
parent 26c7d06783
commit 5acea87c3a