Clarify comment

(cherry picked from commit 4cc5d2e623)

src/win32_window.c

@@ -1276,9 +1276,9 @@ static int createNativeWindow(_GLFWwindow* window,
 
     window->win32.scaleToMonitor = wndconfig->scaleToMonitor;
 
-    // Adjust window size to account for DPI scaling of the window frame and
-    // optionally DPI scaling of the content area
-    // This cannot be done until we know what monitor it was placed on
+    // Adjust window rect to account for DPI scaling of the window frame and
+    // (if enabled) DPI scaling of the content area
+    // This cannot be done until we know what monitor the window was placed on
     if (!window->monitor)
     {
         RECT rect = { 0, 0, wndconfig->width, wndconfig->height };