updated for version 7.4.593

Problem:    Crash when searching for "x\{0,90000}". (Dominique Pelle)
Solution:   Bail out from the NFA engine when the max limit is much higher
            than the min limit.

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    593,
 /**/
     592,
 /**/