fix logging crash (only showed up in release builds run under Win98)

stepmania/src/RageDisplay_OGL.cpp

@@ -279,6 +279,7 @@ static void CheckPalettedTextures()
 		goto fail;
 	}
 
+	{	// in brackets to hush VC6 error
 		GLint size = 0;
 		glGetTexLevelParameteriv(GL_PROXY_TEXTURE_2D, 0, GLenum(GL_TEXTURE_INDEX_SIZE_EXT), &size);
 		if(size != 8)
@@ -286,13 +287,14 @@ static void CheckPalettedTextures()
 			error = ssprintf("Expected an 8-bit palette, got a %i-bit one instead", size);
 			goto fail;
 		}
+	}
 
 	return;
 
 fail:
 	GLExt::glColorTableEXT = NULL;
 	GLExt::glGetColorTableParameterivEXT = NULL;
-	LOG->Info("Paletted textures disabled: %s.", error);
+	LOG->Info("Paletted textures disabled: %s.", error.c_str());
 }
 
 void SetupExtensions()