overlays/wpa-supplicant: init, makes it not spam journal

overlays/default.nix

@@ -7,4 +7,5 @@ builtins.map (path: import path) [
   ./rofi.nix
   ./steam.nix
   ./utillinux.nix
+  ./wpa-supplicant.nix
 ]

overlays/patches/wpa-supplicant.patch

@@ -0,0 +1,13 @@
+diff --git a/wpa_supplicant/systemd/wpa_supplicant.service.in b/wpa_supplicant/systemd/wpa_supplicant.service.in
+index 58a6228..fbe7de3 100644
+--- a/wpa_supplicant/systemd/wpa_supplicant.service.in
++++ b/wpa_supplicant/systemd/wpa_supplicant.service.in
+@@ -7,7 +7,7 @@ Wants=network.target
+ [Service]
+ Type=dbus
+ BusName=fi.w1.wpa_supplicant1
+-ExecStart=@BINDIR@/wpa_supplicant -u
++ExecStart=@BINDIR@/wpa_supplicant -u -q
+ 
+ [Install]
+ WantedBy=multi-user.target

overlays/wpa-supplicant.nix

@@ -0,0 +1,6 @@
+self: super: {
+  # Thanks https://discourse.nixos.org/t/journal-logs-spammed-with-ctrl-event-scan-failed/56316/5
+  wpa_supplicant = super.wpa_supplicant.overrideAttrs(o: {
+    patches = o.patches ++ [ ./patches/wpa-supplicant.patch ];
+  });
+}