nixos/install-grub: normalize whitespace

nixos/modules/system/boot/loader/grub/install-grub.pl

@@ -105,7 +105,7 @@ struct(Fs => {
         device => '$',
         type => '$',
         mount => '$',
-});
+    });
 sub PathInMount {
     my ($path, $mount) = @_;
     my @splitMount = split /\//, $mount;
@@ -156,7 +156,7 @@ sub GetFs {
 struct (Grub => {
         path => '$',
         search => '$',
-});
+    });
 my $driveid = 1;
 sub GrubFs {
     my ($dir) = @_;
@@ -632,7 +632,7 @@ struct(GrubState => {
         devices => '$',
         efiMountPoint => '$',
         extraGrubInstallArgs => '@',
-});
+    });
 # If you add something to the state file, only add it to the end
 # because it is read line-by-line.
 sub readGrubState {