Bump eggdrop version to 1.8.2rc2
Summary:
Source files have been modified for the 1.8 branch,
version has now a dash before.
Test Plan: install-eggdrop
Reviewers: dereckson
Reviewed By: dereckson
Subscribers: Rashk0, tomjerr
Differential Revision: https://devcentral.nasqueron.org/D1178