Hello,

I still got some troubles when i'm using the multiline_regex_before with empty_lines...
I found out that if the last entry in your logfile is empty he will print all lines separately.

my logfile:
2016/04/25 06:48:18 919733 +0200 - cmp05 - 6747/0 - alba/proxy - 57397 - info - ETCD: etcdctl --peers=127.0.0.1:2379 set ovs/vpools/26ecee0c-a3ea-4d37-a245-3b0c0e18823b/proxies/890c3734-a8d6-47ec-ab59-b1d489c0b83c/config/abm [global]; cluster_id = ; cluster = ElLfeK1QfHheHtGO, ABSjdH4ybJRukOwD, wFWnl7M9oFjZMUKj; ; [wFWnl7M9oFjZMUKj]; client_port = ; ip = ; ; [ABSjdH4ybJRukOwD]; client_port = ; ip = ; ; [ElLfeK1QfHheHtGO]; client_port = ; ip = ;
[global]
cluster_id =
cluster = ElLfeK1QfHheHtGO, ABSjdH4ybJRukOwD, wFWnl7M9oFjZMUKj

[wFWnl7M9oFjZMUKj]
client_port =
ip =

[ABSjdH4ybJRukOwD]
client_port =
ip =

[ElLfeK1QfHheHtGO]
client_port =
ip =

2016/04/25 06:48:31 555754 +0200 - cmp05 - 6747/0 - alba/proxy - 57398 - info - update_osds

my beaver config
[/var/log/upstart/.log]
multiline_regex_before = ^[^\d{4}/\d{2}/\d{1,2}].
ignore_empty: 1
type: other
tags: other

You could easily fix this if you add
for line in lines:
if line == '':
break
....

in your multiline_merge function [https://github.com/python-beaver/python-beaver/blob/master/beaver/utils.py#L199]

Can you please fix this?