Use uniform log format for default config files

Related: OS#6272
Change-Id: I80708f7394d2d6f407523628a7101ec9428e1443
diff --git a/doc/examples/osmo-gbproxy/osmo-gbproxy-legacy.cfg b/doc/examples/osmo-gbproxy/osmo-gbproxy-legacy.cfg
index e30b9f7..79b0c4b 100644
--- a/doc/examples/osmo-gbproxy/osmo-gbproxy-legacy.cfg
+++ b/doc/examples/osmo-gbproxy/osmo-gbproxy-legacy.cfg
@@ -5,7 +5,11 @@
 log stderr
  logging filter all 1
  logging color 1
+ logging print category-hex 0
+ logging print category 1
  logging timestamp 0
+ logging print file basename last
+ logging print level 1
  logging level all debug
  logging level gprs debug
  logging level ns info
diff --git a/doc/examples/osmo-gbproxy/osmo-gbproxy-pool.cfg b/doc/examples/osmo-gbproxy/osmo-gbproxy-pool.cfg
index 7457ee8..3fa5e6d 100644
--- a/doc/examples/osmo-gbproxy/osmo-gbproxy-pool.cfg
+++ b/doc/examples/osmo-gbproxy/osmo-gbproxy-pool.cfg
@@ -2,6 +2,14 @@
 ! Osmocom Gb Proxy (0.9.0.404-6463) configuration saved from vty
 !!
 !
+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
+
 line vty
  no login
 !
diff --git a/doc/examples/osmo-gbproxy/osmo-gbproxy.cfg b/doc/examples/osmo-gbproxy/osmo-gbproxy.cfg
index 15c53d2..91edbab 100644
--- a/doc/examples/osmo-gbproxy/osmo-gbproxy.cfg
+++ b/doc/examples/osmo-gbproxy/osmo-gbproxy.cfg
@@ -2,6 +2,14 @@
 ! Osmocom Gb Proxy (0.9.0.404-6463) configuration saved from vty
 !!
 !
+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
+
 line vty
  no login
 !