nixos: fix 'do not exist' typos

nixos/modules/services/hardware/lirc.nix

@@ -42,7 +42,7 @@ in
 
   config = lib.mkIf cfg.enable {
 
-    # Note: LIRC executables raises a warning, if lirc_options.conf do not exists
+    # Note: LIRC executables raises a warning, if lirc_options.conf does not exist
     environment.etc."lirc/lirc_options.conf".text = cfg.options;
 
     passthru.lirc.socket = "/run/lirc/lircd";

nixos/modules/virtualisation/qemu-vm.nix

@@ -137,7 +137,7 @@ let
     NIX_DISK_IMAGE=$(readlink -f "''${NIX_DISK_IMAGE:-${toString config.virtualisation.diskImage}}") || test -z "$NIX_DISK_IMAGE"
 
     if test -n "$NIX_DISK_IMAGE" && ! test -e "$NIX_DISK_IMAGE"; then
-        echo "Disk image do not exist, creating the virtualisation disk image..."
+        echo "Disk image does not exist, creating the virtualisation disk image..."
 
         ${
           if (cfg.useBootLoader && cfg.useDefaultFilesystems) then

nixos/tests/bird.nix

@@ -124,7 +124,7 @@ in
         host1.wait_until_succeeds("ip --json -6 r | jq -e 'map(select(.dst == \"fdff::2\")) | any'")
         host2.wait_until_succeeds("ip --json -6 r | jq -e 'map(select(.dst == \"fdff::1\")) | any'")
 
-      with subtest("Check fake routes in preCheckConfig do not exists"):
+      with subtest("Check fake routes in preCheckConfig do not exist"):
         host1.fail("ip --json r | jq -e 'map(select(.dst == \"1.2.3.4\")) | any'")
         host2.fail("ip --json r | jq -e 'map(select(.dst == \"1.2.3.4\")) | any'")
 

nixos/tests/containers-tmpfs.nix

@@ -79,7 +79,7 @@
     with subtest(
         "files created in the hosts container dir in a path where a tmpfs "
         + "file system has been mounted are not visible to the container as "
-        + "the do not exist in the tmpfs"
+        + "they do not exist in the tmpfs"
     ):
         machine.succeed(
             "touch /var/lib/nixos-containers/tmpfs/var/test.file",