Fix missing newlines in errors in Context.lookupAndRegister

src/context.zig

@@ -118,7 +118,7 @@ pub fn Context(comptime ctx: anytype) type {
                 const id_ptr = lookupMut(T);
                 if (id_ptr.* != 0 and id_ptr.* != entity.raw) {
                     if (!meta.isNull(error_writer))
-                        try std.fmt.format(error_writer, "Trying to register lookup for entity '{any}' as {d}, but it's already registered as {d}", .{ entity, entity.raw, id_ptr.* });
+                        try std.fmt.format(error_writer, "Trying to register lookup for entity '{}' as {d}, but it's already registered as {d}\n", .{ entity, entity.raw, id_ptr.* });
                     return error.LookupIdMismatch;
                 }
                 id_ptr.* = entity.raw;
@@ -126,9 +126,9 @@ pub fn Context(comptime ctx: anytype) type {
             } else {
                 if (!meta.isNull(error_writer)) {
                     if (parent) |p|
-                        try std.fmt.format(error_writer, "Could not find child '{s}' of parent '{any}'", .{ name, p })
+                        try std.fmt.format(error_writer, "Could not find child '{s}' of parent '{}'\n", .{ name, p })
                     else
-                        try std.fmt.format(error_writer, "Could not find root entity '{s}'", .{name});
+                        try std.fmt.format(error_writer, "Could not find root entity '{s}'\n", .{name});
                 }
                 return error.EntityNotFound;
             }