yum remove git

yum install curl-devel expat-devel gettext-devel openssl-devel zlib-devel asciidoc
yum install gcc perl-ExtUtils-MakeMaker
yum -y install xmlto

wget https://github.com/git/git/archive/v2.2.1.tar.gz

tar zxvf v2.2.1.tar.gz

cd git-2.2.1

make configure

./configure --prefix=/usr/local/git --with-iconv=/usr/local/libiconv

make all doc

make install install-doc install-html

echo "export PATH=$PATH:/usr/local/git/bin" >> /etc/bashrc

source /etc/bashrc

git --version

git version 2.2.1