Tests: Update version of syslog_rfc5424_parser.
Bump to version v0.3.1.
Fixes an issue with stdlib enum imports under python3.5.
@@ -12,4 +12,4 @@ pycodestyle # MIT (Expat license) https://pypi
scapy==2.4.0; python_version >= '2.7' or python_version >= '3.4' # GPL2 https://github.com/secdev/scapy/blob/master/LICENSE
six # MIT
subprocess32 # PSF
-syslog_rfc5424_parser>=0.3.0 # ISC
+syslog_rfc5424_parser>=0.3.1 # ISC
