compile vlc on android

https://wiki.videolan.org/AndroidCompile/

紀錄一下遇到的問題：

1. 第一次進行sh compile.sh 時，出現
Archive:  gradle-2.2.1-all.zip
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
unzip:  cannot find zipfile directory in one of gradle-2.2.1-all.zip or
        gradle-2.2.1-all.zip.zip, and cannot find gradle-2.2.1-all.zip.ZIP, period.

在資料夾底下 都會有一個未完整的gradle-2.2.1-all.zip，爬了一下文http://metalkin.tistory.com/82
雖然說是韓文...但大概可以猜到怎麼解
修改 compile.sh at Line 81:
wget ${GRADLE_URL} 2>/dev/null || curl -O ${GRADLE_URL}
=>wget ${GRADLE_URL} 2>/dev/null || curl -O -L ${GRADLE_URL}