test: add missing escape backslash in test_declare_external_prereq()

diff --git a/test/test-lib.sh b/test/test-lib.sh
index d7282ff66efa6cc237cfe56d20567a170694ffab..9dcb2d2e2a2bc4a57c4356d182dc59f291e8bd7e 100644 (file)
--- a/test/test-lib.sh
+++ b/test/test-lib.sh
@@ -557,7 +557,7 @@ test_declare_external_prereq () {
        test_missing_external_prereq_${binary}_=t
 $binary () {
        echo -n \"\$test_subtest_missing_external_prereqs_\" | grep -e \" $name \" ||
-       test_subtest_missing_external_prereqs_=\"$test_subtest_missing_external_prereqs_ $name\"
+       test_subtest_missing_external_prereqs_=\"\$test_subtest_missing_external_prereqs_ $name\"
        false
 }"
 }