[PATCH] t6013: replace use of 'tac' with equivalent Perl

[Thomas Rast <trast@student.ethz.ch>]

'tac' is not available everywhere, so substitute the equivalent Perl
code 'print reverse <>'.  Noticed by Brian Gernhardt.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
---

Thanks for pointing this out.  However, I tried to avoid hardcoding
those results by recommendation of t/README (last paragraph):

  ... If all the test scripts hardcoded the object IDs like
  t0000-basic.sh does, that defeats the purpose of t0000-basic.sh,
  which is to isolate that level of validation in one place.  Your
  test also ends up needing updating when such a change to the
  internal happens, so do _not_ do it and leave the low level of
  validation to t0000-basic.sh.

So I would favour this fix.  I think this should be ok because we
depend on Perl anyway.

- Thomas


 t/t6013-rev-list-reverse-parents.sh |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/t/t6013-rev-list-reverse-parents.sh b/t/t6013-rev-list-reverse-parents.sh
index d294466..59fc2f0 100755
--- a/t/t6013-rev-list-reverse-parents.sh
+++ b/t/t6013-rev-list-reverse-parents.sh
@@ -25,7 +25,7 @@ test_expect_success 'set up --reverse example' '
 
 test_expect_success '--reverse --parents --full-history combines correctly' '
 	git rev-list --parents --full-history master -- foo |
-		tac > expected &&
+		perl -e "print reverse <>" > expected &&
 	git rev-list --reverse --parents --full-history master -- foo \
 		> actual &&
 	test_cmp actual expected
@@ -33,7 +33,7 @@ test_expect_success '--reverse --parents --full-history combines correctly' '
 
 test_expect_success '--boundary does too' '
 	git rev-list --boundary --parents --full-history master ^root -- foo |
-		tac > expected &&
+		perl -e "print reverse <>" > expected &&
 	git rev-list --boundary --reverse --parents --full-history \
 		master ^root -- foo > actual &&
 	test_cmp actual expected
-- 
1.6.0.1.282.g3cc57