- Fix bug with SSH config generation, order was not correct (keep safe...

- Fix bug with SSH config generation, order was not correct (keep safe handling of unusual filenames).

Documents/bin/gen-ssh-config

 #!/bin/sh
 set -eu
-find "$HOME/.ssh/config.d/" -type f -exec cat {} \; > "$HOME/.ssh/config"
+find "$HOME/.ssh/config.d/" -type f -print0 | sort --zero | xargs -0 cat > "$HOME/.ssh/config"