Tile.cpp: Fix MSVC build broken by 072bbba

src/client/tile.cpp

@@ -2266,7 +2266,7 @@ video::ITexture* TextureSource::getNormalTexture(const std::string &name)
		return getTexture("override_normal.png");
	std::string fname_base = name;
	static const char *normal_ext = "_normal.png";
	static const uint32_t normal_ext_size = strlen(normal_ext);
	static const u32 normal_ext_size = strlen(normal_ext);
	size_t pos = fname_base.find(".");
	std::string fname_normal = fname_base.substr(0, pos) + normal_ext;
	if (isKnownSourceImage(fname_normal)) {
@@ -2277,7 +2277,7 @@ video::ITexture* TextureSource::getNormalTexture(const std::string &name)
			i += normal_ext_size;
		}
		return getTexture(fname_base);
		}
	}
	return NULL;
}