a_amv_var_check_vips(): FIX code to match comment (Felix Fontein)..
Felix reported on s-mailx@:
I've noticed that the new version of s-nail (14.9.0) now prints
warnings and segfaults when $HOME of the current user is not writable.
I'm using it to send mail from a cronjob of my http user, which has no
write-access to its home folder.
...
# echo test | sudo -u http mail my@self
mail: $HOME is not a directory or not accessible: /home/http
mail: $TMPDIR is not a directory or not accessible: /home/http
mail: Assignment of variable aborted: HOME
Segmentation fault
The SEGV actually happens because we try to access ~/.mailrc, but
$HOME is not set. It should be, because we explicitly have the
necessary fallback, unfortunately the code missed the break; from
the switch statement: add it!