t9101: make hash independent

Instead of hard-coding the object ID for our test .gitignore file, let's
compute it.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Acked-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t9101-git-svn-props.sh

@@ -160,11 +160,13 @@ cat >create-ignore.expect <<\EOF
 /no-such-file*
 EOF
 
-cat >create-ignore-index.expect <<\EOF
-100644 8c52e5dfcd0a8b6b6bcfe6b41b89bcbf493718a5 0	.gitignore
-100644 8c52e5dfcd0a8b6b6bcfe6b41b89bcbf493718a5 0	deeply/.gitignore
-100644 8c52e5dfcd0a8b6b6bcfe6b41b89bcbf493718a5 0	deeply/nested/.gitignore
-100644 8c52e5dfcd0a8b6b6bcfe6b41b89bcbf493718a5 0	deeply/nested/directory/.gitignore
+expectoid=$(git hash-object create-ignore.expect)
+
+cat >create-ignore-index.expect <<EOF
+100644 $expectoid 0	.gitignore
+100644 $expectoid 0	deeply/.gitignore
+100644 $expectoid 0	deeply/nested/.gitignore
+100644 $expectoid 0	deeply/nested/directory/.gitignore
 EOF
 
 test_expect_success 'test create-ignore' "