scripts/run-tests.sh: Fix typo.
diff --git a/scripts/run-tests.sh b/scripts/run-tests.sh
index 5c35696..08195a3 100644
--- a/scripts/run-tests.sh
+++ b/scripts/run-tests.sh
@@ -24,4 +24,4 @@ elif which python 2>/dev/null; then
fi
fi
-$PYTHON "$TEST_DIR/spec_tests.py" -s "$TEST_DIR/spec.txt" -p "$PROGRAM" "$@'
+$PYTHON "$TEST_DIR/spec_tests.py" -s "$TEST_DIR/spec.txt" -p "$PROGRAM" "$@"