今天在CentOS6下研究GitLab+Jenkins自动集成时，出现：
Failed to connect to repository : Command "git config --local credential.helper store --file=/tmp/git2956041026506359040.credentials" returned status code 129:
stdout:
stderr: error: unknown option `local'
错误。
发现时CentOS6安装的GIT版本时1.7.1所致，因yum源版本太旧，因此下载源码手动编译之：
# yum remove git
# yum install curl-devel expat-devel gettext-devel openssl-devel zlib-devel -y
# yum install gcc perl-ExtUtils-MakeMaker -y
# wget https://www.kernel.org/pub/software/scm/git/git-2.7.1.tar.gz
# tar -xzvf git-2.7.1.tar.gz
# cd git-2.7.1
# make prefix=/usr/local/git all
# make prefix=/usr/local/git install
# ln -s /usr/local/git/bin/git /usr/bin/git