regex: use regexec_buf()

diff --git a/t/t1700-split-index.sh b/t/t1700-split-index.sh
index 193d55c3f4486ce3515b261df0c7edf9b3e3fcbb..8aef49f23624305a62047da4bc2fd66e6a03b0e5 100755 (executable)
--- a/t/t1700-split-index.sh
+++ b/t/t1700-split-index.sh
@@ -55,7 +55,7 @@ test_expect_success 'disable split index' '
 EOF
        test_cmp ls-files.expect ls-files.actual &&
 
-       BASE=`test-dump-split-index .git/index | grep "^own" | sed "s/own/base/"` &&
+       BASE=$(test-dump-split-index .git/index | grep "^own" | sed "s/own/base/") &&
        test-dump-split-index .git/index | sed "/^own/d" >actual &&
        cat >expect <<EOF &&
 not a split index