* Backend daemon drops privileges after initialization (to not run as root)

* New config option `CLICON_USER` with default value `clicon`
  * Can also be set with `-U <user>` clixon_backend command-line option

test/test_yang_extension.sh

@@ -114,7 +114,7 @@ expecteof "$clixon_netconf -qf $cfg -D $DBG" 0 "<rpc><get-config><source><candid
 if [ $BE -ne 0 ]; then
     new "Kill backend"
     # Check if premature kill
-    pid=`pgrep -u root -f clixon_backend`
+    pid=$(pgrep -u $BUSER -f clixon_backend)
     if [ -z "$pid" ]; then
 	err "backend already dead"
     fi