Fix spelling

src/fmt_fp.c

@@ -265,7 +265,7 @@ mrb_format_float(mrb_float f, char *buf, size_t buf_size, char fmt, int prec, ch
 
   // We now have f as a floating-point number between >= 1 and < 10
   // (or equal to zero), and e contains the absolute value of the power of
-  // 10 exponent. and (dec + 1) == the number of dgits before the decimal.
+  // 10 exponent, and (dec + 1) == the number of digits before the decimal.
 
   // For e, prec is # digits after the decimal
   // For f, prec is # digits after the decimal

src/vm.c

@@ -905,7 +905,7 @@ mrb_f_send(mrb_state *mrb, mrb_value self)
 
   c = mrb_class(mrb, self);
   m = mrb_vm_find_method(mrb, c, &c, name);
-  if (MRB_METHOD_UNDEF_P(m)) {            /* call method_mising */
+  if (MRB_METHOD_UNDEF_P(m)) {            /* call method_missing */
     goto funcall;
   }