Use the {tilde} entity to get a literal tilde without fuss.
With \~, asciidoc 8.5.2 (and probably earlier versions) keeps the
backslash in the output.
Reported-by: Frédéric Brière <fbriere@fbriere.net> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>