all: Rename UMODULE to MODULE in preprocessor/Makefile vars.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

py/objexcept.c

@@ -178,7 +178,7 @@ void mp_obj_exception_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kin
             return;
         }
 
-        #if MICROPY_PY_UERRNO
+        #if MICROPY_PY_ERRNO
         // try to provide a nice OSError error message
         if (o->base.type == &mp_type_OSError && o->args->len > 0 && o->args->len < 3 && mp_obj_is_small_int(o->args->items[0])) {
             qstr qst = mp_errno_to_str(o->args->items[0]);