suricata: clean dump-config output

When user asks for a configuration dump, it is useless to display
the version and CPU info. Also initializing the log system conduct
to overwrite the some log files and in particular suricata.log and
this is annoying as a command should not interfere with a running
daemon.

src/suricata.c

@@ -2226,6 +2226,11 @@ int main(int argc, char **argv)
         exit(EXIT_FAILURE);
     }
 
+    if (suri.run_mode == RUNMODE_DUMP_CONFIG) {
+        ConfDump();
+        exit(EXIT_SUCCESS);
+    }
+
     /* Since our config is now loaded we can finish configurating the
      * logging module. */
     SCLogLoadConfig(suri.daemon, suri.verbose);
@@ -2234,11 +2239,6 @@ int main(int argc, char **argv)
 
     UtilCpuPrintSummary();
 
-    if (suri.run_mode == RUNMODE_DUMP_CONFIG) {
-        ConfDump();
-        exit(EXIT_SUCCESS);
-    }
-
     if (PostConfLoadedSetup(&suri) != TM_ECODE_OK) {
         exit(EXIT_FAILURE);
     }