Don't try to tail directories

[leonsodhi]

If I have a directory structure such as:

/var/log/test/test.log
/var/log/test/subtest

and specify /var/log/test/* in the config, the following error is produced:

2014-06-06 21:38:46 INFO  remote_syslog.go:86 Forwarding /var/log/test/test.log
2014-06-06 21:38:46 INFO  remote_syslog.go:86 Forwarding /var/log/test/subtest
2014-06-06 21:38:46 ERROR  remote_syslog.go:50 Tail worker executed abnormally

[coreybutler]

+1

[johlym]

This would require logic to determine if /var/log/test/subtest is a file with no extension or a directory. Not common but some log files don't have extensions.

[leonsodhi]

There was some work done to solve this in the linked "Issue 11" PR. I think this would do it. That said, we can't risk merging it as so much other stuff has changed that we really need to add tests for all the basic functionality to make sure nothing breaks.