Merge branch 'jk/portable'

* jk/portable:
  t6000lib: re-fix tr portability
  t7505: use SHELL_PATH in hook
  t9112: add missing #!/bin/sh header
  filter-branch: use $SHELL_PATH instead of 'sh'
  filter-branch: don't use xargs -0
  add NO_EXTERNAL_GREP build option
  t6000lib: tr portability fix
  t4020: don't use grep -a
  add test_cmp function for test scripts
  remove use of "tail -n 1" and "tail -1"
  grep portability fix: don't use "-e" or "-q"
  more tr portability test script fixes
  t0050: perl portability fix
  tr portability fixes

1 files changed, 1 insertions, 1 deletions

diff --git a/git-am.sh b/git-am.sh
index 1f6b5e02c5..ac5c388060 100755
--- a/git-am.sh
+++ b/git-am.sh
@@ -357,7 +357,7 @@ do
 		LAST_SIGNED_OFF_BY=`
 		    sed -ne '/^Signed-off-by: /p' \
 		    "$dotest/msg-clean" |
-		    tail -n 1
+		    sed -ne '$p'
 		`
 		ADD_SIGNOFF=`
 		    test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {