(kill-emacs 0) exiting with 1

[Sam Halliday]

Hi all,

This may be related to this recent bugfix

  http://lists.gnu.org/archive/html/bug-gnu-emacs/2015-02/msg00623.html

I'm using emacs 24.4 built manually on an Ubuntu Precise machine (to match 
Travis CI).

When running this code

  https://github.com/ensime/ensime-emacs/blob/master/ensime-test.el#L399

which is being called as (kill-emacs 0), we are getting an exit code of 1, e.g. 
in this build

  https://travis-ci.org/ensime/ensime-emacs/builds/52743121

(go to the bottom of the console output)

Is this a regression introduced with the bugfix?

Given that the shell script is `exec`-ing into emacs, which then ends with 
`(kill-emacs 0)`, I am confused how anything else could interfere with the exit 
status of the build script that we're running.

Best regards,
Sam