java: mv CommonsCliExample.java into CommonsCli/

Signed-off-by: Jianhong Yin <yin-jianhong@163.com>

Author: tcler

java/CommonsCliExample.java renamed to java/CommonsCli/CommonsCliExample.java

@@ -1,6 +1,6 @@
 //ref: https://commons.apache.org/proper/commons-cli/usage.html
 //
-//usage: 
+//usage:
 //1. download commons-cli-${ver} package .zip or .tgz and unzip
 //2. javac -classpath commons-cli-${ver}/commons-cli-$ver.jar CommonsCliExample.java
 //3. java -classpath commons-cli-${ver}/commons-cli-$ver.jar CommonsCliExample