with the latest snapshot (I think, how can I see the build date for
gretlcli.exe?) I get the following message:
+++ tokenizer: err=18 on 'loop foreach i @smnames --quiet'
where 'smnames' is a string variable with space-delimited names.
However, this doesn't seem to be an error because gretl doesn't stop but
continues to process the script. So what does err=18 mean and should I care?