git checkout same &&
git format-patch -1 --stdout | calc_patch_id same &&
test_cmp patch-id_master patch-id_same &&
- set `git format-patch -1 --stdout | git patch-id` &&
- test "$2" = `git rev-parse HEAD`
+ set $(git format-patch -1 --stdout | git patch-id) &&
+ test "$2" = $(git rev-parse HEAD)
'
test_expect_success 'whitespace is irrelevant in footer' '