[seqfan] Writing files in PARI v. 2.9.3?

[Felix Fröhlich]

Dear SeqFans,

I recently updated my PARI version to 2.9.3. I used to be able to use a
command like forprime(p=1, , if(is(p), write1(A123456, p, ", "))) to let
PARI write the output to a file instead of the console. This worked well in
my older PARI version, but with 2.9.3 I get an error:

write1: error opening output file: 'A123456'.

Does anybody know what the problem is here?

Best regards
Felix