userdiff: add a builtin pattern for dts files

diff --git a/t/t0090-cache-tree.sh b/t/t0090-cache-tree.sh
index 504334e552251ed0c1f74536f6fd09ffccda615d..ce9a4a5f324b74d61d8f0c8abcaee866cbe874e9 100755 (executable)
--- a/t/t0090-cache-tree.sh
+++ b/t/t0090-cache-tree.sh
@@ -162,8 +162,8 @@ test_expect_success PERL 'commit --interactive gives cache-tree on partial commi
 '
 
 test_expect_success PERL 'commit -p with shrinking cache-tree' '
-       mkdir -p deep/subdir &&
-       echo content >deep/subdir/file &&
+       mkdir -p deep/very-long-subdir &&
+       echo content >deep/very-long-subdir/file &&
        git add deep &&
        git commit -m add &&
        git rm -r deep &&