[PATCH 2/2] t0300: use write_script helper

t0300 creates some helper shell scripts, and marks them with
"!/bin/sh". Even though the scripts are fairly simple, they
can fail on broken shells (specifically, Solaris /bin/sh
will persist a temporary assignment to IFS in a "read"
command).

Rather than work around the problem for Solaris /bin/sh,
using write_script will make sure we point to a known-good
shell that the user has given us.

Signed-off-by: Jeff King <redacted>
---
This works fine on my Linux box, but just to sanity check that I didn't
screw anything up in the whopping 5 lines of changes, can you confirm
this fixes the issue for you, Ben?

 t/t0300-credentials.sh |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/t/t0300-credentials.sh b/t/t0300-credentials.sh
index 885af8f..0b46248 100755
--- a/t/t0300-credentials.sh
+++ b/t/t0300-credentials.sh

@@ -14,14 +14,13 @@ test_expect_success 'setup helper scripts' '
 	done
 	EOF
 
-	cat >git-credential-useless <<-\EOF &&
+	write_script git-credential-useless <<-\EOF &&
 	#!/bin/sh
 	. ./dump
 	exit 0
 	EOF
-	chmod +x git-credential-useless &&
 
-	cat >git-credential-verbatim <<-\EOF &&
+	write_script git-credential-verbatim <<-\EOF &&
 	#!/bin/sh
 	user=$1; shift
 	pass=$1; shift

@@ -29,7 +28,6 @@ test_expect_success 'setup helper scripts' '
 	test -z "$user" || echo username=$user
 	test -z "$pass" || echo password=$pass
 	EOF
-	chmod +x git-credential-verbatim &&
 
 	PATH="$PWD:$PATH"
 '

-- 
1.7.9.rc1.28.gf4be5