Smaller size for manticore

examples/Runlen.cpp

@@ -34,7 +34,7 @@ char* decode(const char* output) {
 }
 
 // Can be higher if we're using fuzzing, not symbolic execution
-#define MAX_STR_LEN 5
+#define MAX_STR_LEN 4
 
 TEST(Runlength, EncodeDecode) {
   char* original = DeepState_CStrUpToLen(MAX_STR_LEN, "ab");