get rid of warning in pythonrun.c

[b7a711ff-d634-47b2-ad1b-41e5ae806c8b]

BPO	400637
Nosy	@gvanrossum
Files	None: None

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields: ```python assignee = 'https://github.com/gvanrossum' closed_at = created_at = labels = [] title = 'get rid of warning in pythonrun.c' updated_at = user = 'https://bugs.python.org/effbot' ``` bugs.python.org fields: ```python activity = actor = 'gvanrossum' assignee = 'gvanrossum' closed = True closed_date = None closer = None components = ['None'] creation = creator = 'effbot' dependencies = [] files = ['2464'] hgrepos = [] issue_num = 400637 keywords = ['patch'] message_count = 3.0 messages = ['32831', '32832', '32833'] nosy_count = 2.0 nosy_names = ['gvanrossum', 'effbot'] pr_nums = [] priority = 'normal' resolution = None stage = None status = 'closed' superseder = None type = None url = 'https://bugs.python.org/issue400637' versions = [] ```

[b7a711ff-d634-47b2-ad1b-41e5ae806c8b]

[gvanrossum]

OK, I'll check it in.

[gvanrossum]

Checked in.