netplan: remove default value from fetchFromGitHub, cleanup substituteInPlace

pkgs/tools/admin/netplan/default.nix

@@ -20,7 +20,6 @@ stdenv.mkDerivation rec {
     repo = "netplan";
     rev = version;
     hash = "sha256-d8Ze8S/w2nyJkATzLfizMqmr7ad2wrK1mjADClee6WE=";
-    fetchSubmodules = false;
   };
 
   nativeBuildInputs = [
@@ -39,12 +38,14 @@ stdenv.mkDerivation rec {
   ];
 
   postPatch = ''
-    substituteInPlace netplan/cli/utils.py --replace "/lib/netplan/generate" "$out/lib/netplan/generate"
-    substituteInPlace netplan/cli/utils.py --replace "ctypes.util.find_library('netplan')" "\"$out/lib/libnetplan.so\""
+    substituteInPlace netplan/cli/utils.py \
+      --replace "/lib/netplan/generate" "$out/lib/netplan/generate" \
+      --replace "ctypes.util.find_library('netplan')" "\"$out/lib/libnetplan.so\""
 
-    substituteInPlace Makefile --replace 'SYSTEMD_GENERATOR_DIR=' 'SYSTEMD_GENERATOR_DIR ?= ' \
-        --replace 'SYSTEMD_UNIT_DIR=' 'SYSTEMD_UNIT_DIR ?= ' \
-        --replace 'BASH_COMPLETIONS_DIR=' 'BASH_COMPLETIONS_DIR ?= '
+    substituteInPlace Makefile \
+      --replace 'SYSTEMD_GENERATOR_DIR=' 'SYSTEMD_GENERATOR_DIR ?= ' \
+      --replace 'SYSTEMD_UNIT_DIR=' 'SYSTEMD_UNIT_DIR ?= ' \
+      --replace 'BASH_COMPLETIONS_DIR=' 'BASH_COMPLETIONS_DIR ?= '
 
     # from upstream https://github.com/canonical/netplan/blob/ee0d5df7b1dfbc3197865f02c724204b955e0e58/rpm/netplan.spec#L81
     sed -e "s/-Werror//g" -i Makefile