osmo-hlr.cfg: Ensure well-formed config file example

Change-Id: I136fdda6f4088f2e8094eed6fe9481f5d6476d4f
diff --git a/doc/examples/osmo-hlr.cfg b/doc/examples/osmo-hlr.cfg
index 54993a9..a685858 100644
--- a/doc/examples/osmo-hlr.cfg
+++ b/doc/examples/osmo-hlr.cfg
@@ -2,18 +2,18 @@
 ! OsmoHLR example configuration
 !
 log stderr
-  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 main notice
-  logging level db notice
-  logging level auc notice
-  logging level ss info
-  logging level linp error
+ 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 main notice
+ logging level db notice
+ logging level auc notice
+ logging level ss info
+ logging level linp error
 !
 line vty
  bind 127.0.0.1