ERROR: gnu-config-native-20150728+gitAUTOINC+b576fa87c1-r0 do_unpack: Function failed: Fetcher failure: Fetch command failed with exit code 128, output: fatal: the '--set-upstream' option is no longer

/**********************************************************************
 *    ERROR: gnu-config-native-20150728+gitAUTOINC+b576fa87c1-r0 do_unpack: Function failed: Fetcher failure: Fetch command failed with exit code 128, output: fatal: the '--set-upstream' option is no longer supported. Please use '--track' or '--set-upstream-to' instead.
 * 说明：
 *     在Ubuntu 18.04上编译Yocto，出现的git访问的问题。
 *
 *                                2018-6-13 深圳 宝安西乡 曾剑锋
 *********************************************************************/

一、参考文档：
    1. ubuntu 12.04 yocto 最近出现的编译问题
        https://blog.csdn.net/ming_l1/article/details/79362370

二、解决方法：
    1. sources/poky/bitbake/lib/bb/fetch2/git.py
        runfetchcmd("%s branch --set-upstream %s origin/%s" % (ud.basecmd, branchname, 
                    branchname), d)
        to
        runfetchcmd("%s branch --set-upstream-to origin/%s" % (ud.basecmd, 
                    branchname), d)