log errors from apache chilinit()

it seems that apache doesn not log error to the error log, so we catch
them an log to syslog

www/manager/startup.pl

@@ -34,10 +34,13 @@ use PVE::RPCEnvironment;
 
 sub childinit {
     syslog ('info', "Starting new child $$");
+
+    eval {
 	PVE::INotify::inotify_init();
 	PVE::RPCEnvironment->init('pub');
-
-    PVE::Config::inotify_init();
+    };
+    my $err = $@;
+    syslog('err', $err) if $err;
 }
 
 sub childexit {