Windows Python help raises NameError because of missing underscore

# Bug report

### Bug description:

in Lib\_pyrepl\pager.py, line 38, a function tempfilepager is called. However, there is no such function, but thanks to newly added suggestions, I see there is a tempfile_pager function, which obviously should have been called instead.

### CPython versions tested on:

3.13

### Operating systems tested on:

Windows