Recently, GitHub started to show a new warning:

> Check warning on line 999 in Parser/tokenizer.c
> GitHub Actions / Address sanitizer
> Parser/tokenizer.c#L999
> ‘print_escape’ defined but not used [-Wunused-function]

Link: https://github.com/python/cpython/pull/29158/files#file-parser-tokenizer-c-L999

I guess this happens because `print_escape` is only used when `Py_DEBUG` is set:

```
#if defined(Py_DEBUG)
        if (Py_DebugFlag) {
            printf("line[%d] = ", tok->lineno);
            print_escape(stdout, tok->cur, tok->inp - tok->cur);
            printf("  tok->done = %d\n", tok->done);
        }
#endif
```

Will this be a proper fix? Or do we need it for some other reason?

```
#if defined(Py_DEBUG)
static void
print_escape(FILE *f, const char *s, Py_ssize_t size)
// ...
# endif
```

If it's fine, I will send a PR :)

New changeset 4bc5473a42c5eae0928430930b897209492e849d by Nikita Sobolev in branch 'main':
bpo-45574: fix warning about `print_escape` being unused (GH-29172)
https://github.com/python/cpython/commit/4bc5473a42c5eae0928430930b897209492e849d

New changeset cadf06eab75c887dfc753ca80ef35cd2a7871135 by Miss Islington (bot) in branch '3.10':
bpo-45574: fix warning about `print_escape` being unused (GH-29172) (#29176)
https://github.com/python/cpython/commit/cadf06eab75c887dfc753ca80ef35cd2a7871135