minor init error reporting change

src/main.zig

@@ -64,8 +64,12 @@ pub fn main(init: std.process.Init) !void {
 
     glfw.windowHint(.CLIENT_API, glfw.NO_API);
     ctx.window = glfw.createWindow(c.default_window_size, c.window_title, null, null) orelse {
+        const err = glfw.getError();
         std.log.err("Could not create window", .{});
-        return error.GlfwError;
+        if (err.description) |description| {
+            std.log.err("{s}", .{description});
+        }
+        return err.error_code.toError();
     };
     defer {
         ctx.window.destroy();