xindy-2.5.1 is broken by grep-2.23

[ken@…]

Somewhat reminiscent of #5926.

The latin.xdy and utf8.xdy files are created by sorting files in latin1,2,3 together for latin.xdy and sorting utf8 versions of those for utf8.xdy. After the sort, they are passed through grep -v '^{;' to remove blank lines.}

In both cases, grep now just outputs

Binary file (standard input) matches

For the first one, grep is now going to choke because they are in different encodings. For the second, we already forced POSIX so UTF-8 does not fit.

I think I have a fix, replacing grep by awk.

[ken@…]

Done in r17027.