/usr/bin/open <document> is used under OS X to open a document as if the
user had double-clicked on the file's icon (i.e. HTML files are opened
w/the user's default browser).
Signed-off-by: Jay Soffian <jaysoffian@gmail.com> Acked-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>