Fix typo "overfow" to "overflow" [ci skip]
@@ -287,7 +287,7 @@ typedef struct mrb_state {
struct RObject *nomem_err; /* pre-allocated NoMemoryError */
struct RObject *stack_err; /* pre-allocated SysStackError */
#ifdef MRB_GC_FIXED_ARENA
- struct RObject *arena_err; /* pre-allocated arena overfow error */
+ struct RObject *arena_err; /* pre-allocated arena overflow error */
#endif
void *ud; /* auxiliary data */
