Fix 8.5a7 release year

2018 is gone. Get over it.

Fix 8.5a7 release year
2018 is gone. Get over it.
2ffa4185 · Georg Koppen · 71b5a3b4 · 2ffa4185
Unverified Commit 2ffa4185 authored Jan 27, 2019 by Georg Koppen
--- a/projects/tor-browser/Bundle-Data/Docs/ChangeLog.txt
+++ b/projects/tor-browser/Bundle-Data/Docs/ChangeLog.txt
-Tor Browser 8.5a7 -- January 29 2018
+Tor Browser 8.5a7 -- January 29 2019
 * All Platforms
   * Update Firefox to 60.5.0esr
   * Update Torbutton to 2.1.4