[PATCH 1/4] t0021: use write_script to create rot13 shell script

[Jeff King <peff@xxxxxxxx>]

This avoids us fooling around with $SHELL_PATH and the
executable bit ourselves.

Signed-off-by: Jeff King <peff@xxxxxxxx>
---
 t/t0021-conversion.sh | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh
index a20b9f58e..dfde22549 100755
--- a/t/t0021-conversion.sh
+++ b/t/t0021-conversion.sh
@@ -6,13 +6,11 @@ test_description='blob conversion via gitattributes'
 
 TEST_ROOT="$(pwd)"
 
-cat <<EOF >"$TEST_ROOT/rot13.sh"
-#!$SHELL_PATH
+write_script <<\EOF "$TEST_ROOT/rot13.sh"
 tr \
   'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' \
   'nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
 EOF
-chmod +x "$TEST_ROOT/rot13.sh"
 
 generate_random_characters () {
 	LEN=$1
-- 
2.11.0.rc0.258.gf434c15