[PATCH 2/2] lib: fix error handling

[David Bremner]

Tomi Valkeinen <tomi.valkeinen at iki.fi> writes:

> Currently if a Xapian exception happens in notmuch_message_get_header,
> the exception is not caught leading to crash. In
> notmuch_message_get_date the exception is caught, but an internal error
> is raised, again leading to crash.
>
> This patch fixes the error handling by making both functions catch the
> Xapian exceptions, print an error and return NULL or 0.

pushed,

thanks

d