su_log.c: allow multiple calls su_log_soft_set_level() to change logging level

darcs-hash:20080507145952-db55f-b963923abccc019e7c8bd88f7062cfa64d9e7900.gz

libsofia-sip-ua/su/su_log.c

@@ -240,11 +240,13 @@ void su_log_soft_set_level(su_log_t *log, unsigned level)
 {
   if (log == NULL)
     log = su_log_default;
-  if (log->log_init > 1)
+  if (log->log_init == 1)
     return;
+
   if (log->log_env && getenv(log->log_env)) {
     su_log_init(log);
-  } else {
+  }
+  else {
     log->log_level = level;
     log->log_init = 2;