Correct truncated `SystemStackError` [ci skip]
MODIFY
include/mruby.h
include/mruby.h
@@ -312,7 +312,7 @@ typedef struct mrb_state {
struct RClass *eException_class;
struct RClass *eStandardError_class;
struct RObject *nomem_err; /* pre-allocated NoMemoryError */
- struct RObject *stack_err; /* pre-allocated SysStackError */
+ struct RObject *stack_err; /* pre-allocated SystemStackError */
#ifdef MRB_GC_FIXED_ARENA
struct RObject *arena_err; /* pre-allocated arena overflow error */
#endif

Correct truncated `SystemStackError` [ci skip]