Fix style

CONTRIBUTING.md

@@ -200,8 +200,9 @@ Before you can start, you need a GitHub account, here are a few suggestions:
   - All significant new classes, methods and functions have Doxygen-style
     documentation in source comments.
   - Consistent code styling is enforced with `make style` in the top-level
-    directory. This requires [Artistic Style](http://astyle.sourceforge.net) (we
-    specifically use version 2.05.1). See also the file `config/glvis.astylerc`.
+    directory. This requires [Artistic Style](http://astyle.sourceforge.net)
+    version 2.05.1 and MFEM's style configuration file, typically located in
+    `../mfem/config/mfem.astylerc`.
   - Use `glvis::out` and `glvis::err` instead of `std::cout` and `std::cerr` in
     internal library code. (You can use `std` in examples and miniapps.)
   - When manually resolving conflicts during a merge, make sure to mention the

lib/sdl.cpp

@@ -111,7 +111,7 @@ bool SdlWindow::createWindow(const char* title, int x, int y, int w, int h,
    if (err == GLEW_ERROR_NO_GLX_DISPLAY)
    {
       cerr << "GLEW: No GLX display found. If you are using Wayland this can "
-              "be ignored." << endl;
+           << "be ignored." << endl;
       err = GLEW_OK;
    }
 #endif
@@ -440,13 +440,11 @@ void SdlWindow::mainIter()
       {
          // Wait for next wakeup event from main event thread
          unique_lock<mutex> event_lock{event_mutex};
-         events_available.wait(
-            event_lock,
-            [this]()
-            {
-               // Sleep until events from WM or glvis_command can be handled
-               return !waiting_events.empty() || call_idle_func;
-            });
+         events_available.wait(event_lock, [this]()
+         {
+            // Sleep until events from WM or glvis_command can be handled
+            return !waiting_events.empty() || call_idle_func;
+         });
       }
    }
    if (wnd_state == RenderState::ExposePending)

lib/threads.cpp

@@ -23,8 +23,8 @@ GLVisCommand::GLVisCommand(
 {
    vs        = _vs;
    keep_attr = _keep_attr;
-   thread_wnd = GetAppWindow(); // should be set in this thread by a call to
-                                // InitVisualization()
+   // should be set in this thread by a call to InitVisualization()
+   thread_wnd = GetAppWindow();
 
    num_waiting = 0;
    terminating = false;