GOPATH set as systemd environment variable

src/freedombone

 
   # install Go
   apt-get -y install golang
-  echo 'export GOPATH=/home/git/go' >> ~/.bashrc
+  if ! grep -q "export GOPATH=/home/git/go" ~/.bashrc; then
+      echo 'export GOPATH=/home/git/go' >> ~/.bashrc
+      echo 'systemctl set-environment GOPATH=/home/git/go' >> ~/.bashrc
+  fi
   . ~/.bashrc
   export GOPATH=/home/git/go
   if [ ! -d $GOPATH ]; then