all: Fix spelling mistakes based on codespell check.

Signed-off-by: Damien George <damien@micropython.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/py/runtime.c b/py/runtime.c
index 23fae6041..3c7c0350c 100644
--- a/py/runtime.c
+++ b/py/runtime.c
@@ -450,7 +450,7 @@ mp_obj_t MICROPY_WRAP_MP_BINARY_OP(mp_binary_op)(mp_binary_op_t op, mp_obj_t lhs
                     } else {
                         // standard precision is enough for right-shift
                         if (rhs_val >= (mp_int_t)(sizeof(lhs_val) * MP_BITS_PER_BYTE)) {
-                            // Shifting to big amounts is underfined behavior
+                            // Shifting to big amounts is undefined behavior
                             // in C and is CPU-dependent; propagate sign bit.
                             rhs_val = sizeof(lhs_val) * MP_BITS_PER_BYTE - 1;
                         }