Clean up some comments

Author: brandtbucher

Python/ceval.c

@@ -2004,6 +2004,10 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, InterpreterFrame *frame, int thr
             PyObject *divisor = POP();
             PyObject *dividend = TOP();
             PyObject *res;
+            // NOTE: This optimization keeps us from rolling modulation into
+            // BINARY_OP/INPLACE_OP. Once we start specializing those, we can
+            // get rid of BINARY_MODULO/INPLACE_MODULO and implement this trick
+            // as a specialized variant.
             if (PyUnicode_CheckExact(dividend) && (
                   !PyUnicode_Check(divisor) || PyUnicode_CheckExact(divisor))) {
               // fast path; string formatting, but not if the RHS is a str subclass

Python/compile.c

@@ -3708,7 +3708,7 @@ addop_binary(struct compiler *c, operator_ty binop, bool inplace)
             ADDOP(c, inplace ? INPLACE_MODULO : BINARY_MODULO);
             return 1;
         case Pow:
-            // Exponentiation is techncally ternary:
+            // Exponentiation is technically ternary:
             ADDOP(c, inplace ? INPLACE_POWER : BINARY_POWER);
             return 1;
         case LShift: