Matt Harbison <matt_harbison@yahoo.com> [Tue, 19 Nov 2019 14:36:22 -0500] rev 43719
shelve: fix a missing variable in the exception handler for delete
Caught by pytype. I haven't paid much attention to the progress of this
extension, but I *think* this was the intent.
Differential Revision: https://phab.mercurial-scm.org/D7457