nixos-generate-config: fix perl quoting after cb1ca42

Changed files
+1 -1
nixos
modules
installer
+1 -1
nixos/modules/installer/tools/nixos-generate-config.pl
···
# networking.wireless.enable = true; # Enables wireless support via wpa_supplicant.
# Configure network proxy if necessary
-
# networking.proxy.default = "http://user:password@proxy:port/";
+
# networking.proxy.default = "http://user:password\@proxy:port/";
# networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
# Select internationalisation properties.