Add --hush switch.

New --hush command-line option similar to --quiet.  While --quiet disables all
logging to the console on startup, --hush limits the output to messages of
warning and error severity.


svn:r14222

src/common/log.c

@@ -535,10 +535,10 @@ init_logging(void)
  * logs are initialized).
  */
 void
-add_temp_log(void)
+add_temp_log(int min_severity)
 {
   log_severity_list_t *s = tor_malloc_zero(sizeof(log_severity_list_t));
-  set_log_severity_config(LOG_NOTICE, LOG_ERR, s);
+  set_log_severity_config(min_severity, LOG_ERR, s);
   LOCK_LOGS();
   add_stream_log_impl(s, "<temp>", stdout);
   tor_free(s);

src/common/log.h

@@ -130,7 +130,7 @@ int add_callback_log(log_severity_list_t *severity, log_callback cb);
 int get_min_log_level(void);
 void switch_logs_debug(void);
 void logs_free_all(void);
-void add_temp_log(void);
+void add_temp_log(int min_severity);
 void close_temp_logs(void);
 void rollback_log_changes(void);
 void mark_logs_temp(void);