[gradle] Task.leftShift(Closure) method has been deprecated

[ttpro1995]

My current gradle

------------------------------------------------------------
Gradle 4.3.1
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Build time:   2017-11-08 08:59:45 UTC
Revision:     e4f4804807ef7c2829da51877861ff06e07e006d

Groovy:       2.4.12
Ant:          Apache Ant(TM) version 1.9.6 compiled on June 29 2015
JVM:          1.8.0_151 (Oracle Corporation 25.151-b12)
OS:           Linux 4.10.0-42-generic amd64

When I build with

gradle compileKenLMtools

I got a message:

> Configure project : 
The Task.leftShift(Closure) method has been deprecated and is scheduled to be removed in Gradle 5.0. Please use Task.doLast(Action) instead.
        at build_8pp33np0p9752ezmkum94m96i.run(/home/cpu11453local/workspace/study/phrasal/build.gradle:96)
        (Run with --stacktrace to get the full stack trace of this deprecation warning.)