When wc outputs whitespace, the test "$(command | wc -l)" = 1 is
broken because " 1" != "1". Let the shell eat the whitespace by
using test 1 = $(command | wc -l) instead.
Signed-off-by: Brian Gernhardt <benji@silverinsanity.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>