add git config push.default current

setup.sh

@@ -60,6 +60,7 @@ git_config(){
     $_gitconfig log.date iso
     type xz && \
         $_gitconfig tar.txz.command "xz -c"
+    $_gitconfig push.default current
 
     $_gitconfig alias.graph "log --graph --date-order -C -M --pretty=tformat:\"%C(green)%h%C(reset) %C(white)%ad%C(reset) %C(red)%an%C(reset)%C(yellow)%d%C(reset) %C(white bold)%s%C(reset)\" --all --date=iso -n 499"
     $_gitconfig alias.st "status -s -b"