postinstall: fontconfig abnormal exit

[Ken Brown]

On 9/12/2020 2:08 AM, ASSI wrote:
>> I like your idea of using perpetual postinstall scripts.  I think the
>> way to do it is probably to make fontconfig_dtd.sh perpetual with
>> prefix "zp_".
> Yes, that seems like a better solution.  I see a lot of the texlive
> stuff already works this way and it appears to have no problems.  While
> you're at it, please make it a dash script unless you really need
> bashisms.

I've done this now.  I also fixed the fontconfig preremove scripts while I was 
at it.  They had names different from their package names; as a result, they 
were never run.

Fergus and Hamish, the problem you reported should be fixed with fontconfig 
2.13.1-2 and libxml2-2.9.10-2.

Ken