elasticsearch/logstash — pull request #1719 by simmel (2014-09-12 10:18:41+00:00)
Title: Make grok pattern PROG a bit more flexible

This small patch makes logstash correctly interpret e.g. ansible's "ansible-" progname. ATM it failes with a grok parse error.

Generally any characters are allowed except [ and : (colon needed because sometimes a [pid] isn't used).

Tests pass:
```
$ make test
[...]
Finished in 43.47 seconds
636 examples, 0 failures
```