[tlbuild] Possible overflow in line 274 in texk/upmendex/convert.c

[Karl Berry]

    -	char errbuff[BUFFERLEN],errbuff2[BUFFERLEN];
    +	char errbuff[BUFFERLEN+42],errbuff2[BUFFERLEN];

Thanks. I forwarded to Takuji TANAKA-san who maintains upmendex. --karl