fix encoding issue in tf_shareddefs from prev change

Author: mastercoms

src/game/shared/tf/tf_shareddefs.cpp

@@ -1467,7 +1467,7 @@ void LoadObjectInfos( IBaseFileSystem *pFileSystem )
 			// Does it make sense to call the below Steam API so it'll force a validation next startup time?
 			// Need to verify it's real corruption and not someone dorking around with their objects.txt file...
 			//
-			// From Martin Otten: If you have a file on disc and you�re 100% sure it�s
+			// From Martin Otten: If you have a file on disc and you're 100% sure it's
 			//  corrupt, call ISteamApps::MarkContentCorrupt( false ), before you shutdown
 			//  the game. This will cause a content validation in Steam.