From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 02 Jan 2009 22:49:05 GMT
Subject: Re: [PATCH v2 1/3] rebase: learn to rebase root commit
Message-ID: <7vzli9b9y6.fsf@gitster.siamese.dyndns.org>
In-Reply-To: <200901022320.14055.trast@student.ethz.ch>

Thomas Rast <trast@student.ethz.ch> writes:

> I'm still not sure what ${1+"$@"} was about by the way.

It is one of the many old-timer's portability idioms that let us work
around bugs in some ancient shell implementations.

${1+"$@"} should be equivalent to "$@" in modern Bourne shell variants
that are POSIX compliant.