Abort on strbuf errors

Users of the strbuf API are supposed to check for an OOM condition
after appending to strbufs, but:

* This is never done in the whole code base.
* The implementation was flawed because only `ptr` was set to the
  OOM value without adjusting `size` and `asize`. After an error,
  subsequent calls could very well lead to segfaults, contrary to the
  documentation.

Change the code to always abort on errors with a message printed to
stderr. The only alternative is to propagate errors throughout the
whole library which seems infeasible.

0 files changed, 0 insertions, 0 deletions