Cosmetic touchups.

Removed trailing whitespace, added cast to remove warning, added file seeking in case of corrupt files.

src/OSSupport/Event.cpp

@@ -63,7 +63,7 @@ bool cEvent::Wait(unsigned a_TimeoutMSec)
 		}  // switch (wait_until())
 	}  // while (m_ShouldWait && not timeout)
 
-	// The wait timed out in the while() condition:
+	// The wait timed out in the while condition:
 	return false;
 }