remove -C from install

for compatibility with alpine busybox version

install/scripts/copy-user.sh

@@ -19,7 +19,7 @@ user_home=$( getent passwd $user | cut -d: -f6 )
 echo -e "***********  copying UCI BASH Shell .profile and bash_profile and .bashrc for user: $user *******"
 files=$(find $install_dir/files/user -type f)
 for file in $files; do
-install -C -m 660 -o $user -g ${2:-$user} $file $user_home
+install -m 660 -o $user -g ${2:-$user} $file $user_home
 done
 
 if [[ ! subdir == "shell" ]]; then