[appveyor] fix file name
@@ -32,7 +32,7 @@ install:
- move ffmpeg-3.4.2-win32-dev include/ffmpeg
# install bullet
- appveyor DownloadFile https://github.com/bulletphysics/bullet3/archive/2.87.zip
- - 7z x bullet3-2.87.zip
+ - 7z x 2.87.zip
- move bullet3-2.87 include/bullet
# install neko and haxe
- ps: Set-Service wuauserv -StartupType Manual
