Reduce RE_MAX_AST_LEVELS (yes, yet again). Fixes
@@ -82,6 +82,6 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#define RE_MAX_FIBERS 1024
// Maximum number of levels in regexp's AST
-#define RE_MAX_AST_LEVELS 6000
+#define RE_MAX_AST_LEVELS 5000
#endif
