Use new log format; convert old format to new format.

svn:r2684

src/common/log.c

@@ -397,6 +397,11 @@ int parse_log_level(const char *level) {
   return -1;
 }
 
+const char *log_level_to_string(int level)
+{
+  return sev_to_string(level);
+}
+
 int get_min_log_level(void)
 {
   logfile_t *lf;

src/common/log.h

@@ -56,6 +56,7 @@
 typedef void (*log_callback)(int severity, const char *msg);
 
 int parse_log_level(const char *level);
+const char *log_level_to_string(int level);
 void add_stream_log(int severityMin, int severityMax, const char *name, FILE *stream);
 int add_file_log(int severityMin, int severityMax, const char *filename);
 #ifdef HAVE_SYSLOG_H