cfg templates: log level and source basename last, log no category-hex

Makes for saner log output in stderr files.

Change-Id: I2755beffd18d6779367c04e4aaaed119d66eb3be
diff --git a/src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl b/src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl
index 7d12ab5..729c917 100644
--- a/src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl
+++ b/src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl
@@ -6,6 +6,9 @@
  logging filter all 1
  logging color 1
  logging print category 1
+ logging print category-hex 0
+ logging print level 1
+ logging print file basename last
  logging print extended-timestamp 1
  logging level set-all debug
 line vty