Use uniform log format for default config files

Related: OS#6272
Change-Id: If737fb3aa92735a3f4280170370ec48c89134526
diff --git a/doc/examples/osmo-sysmon.cfg b/doc/examples/osmo-sysmon.cfg
index 22c27cb..4e6e633 100644
--- a/doc/examples/osmo-sysmon.cfg
+++ b/doc/examples/osmo-sysmon.cfg
@@ -1,3 +1,11 @@
+log stderr
+ logging color 1
+ logging print category-hex 0
+ logging print category 1
+ logging timestamp 0
+ logging print file basename last
+ logging print level 1
+
 ctrl-client bsc 127.0.0.1 4249
  get-variable msc.0.connection_status
  get-variable bts_connection_status