portable/installer: make sure that LANG is set

Otherwise, vim does not behave correctly.

This fixes git-for-windows/git#298.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

make-file-list.sh

@@ -71,6 +71,7 @@ sed 's/^\///'
 
 cat <<EOF
 etc/profile
+etc/profile.d/lang.sh
 etc/bash.bash_logout
 etc/bash.bashrc
 etc/fstab