t3206: disable parameter substitution in heredoc

In the first heredoc, parameter substitution is not used so prevent it
from happening in the future (perhaps by accident) by escaping the limit
EOF.

The remaining heredocs use parameter substitution so they cannot be
changed.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t3206-range-diff.sh b/t/t3206-range-diff.sh
index 87c6c02..4160677 100755 (executable)
--- a/t/t3206-range-diff.sh
+++ b/t/t3206-range-diff.sh
@@ -9,7 +9,7 @@ test_description='range-diff tests'
 
 test_expect_success 'setup' '
        git fast-import <"$TEST_DIRECTORY"/t3206/history.export &&
-       test_oid_cache <<-EOF
+       test_oid_cache <<-\EOF
        # topic
        t1 sha1:4de457d
        t2 sha1:fccce22