Add a new debug function

src/include/ttail_search.h

  *@param struct tm *
  */
 void ttail_tm_print(const struct tm*);
+void ttail_tm_fprint(FILE*, const struct tm*);
 
 #endif

src/ttail_search.c

 	}
 	/* regex subst */
 	nmatch=1;
-	ret = regexec(&(t->date_prefix), logline, nmatch, pmatch, 0);\
+	ret = regexec(&(t->date_prefix), logline, nmatch, pmatch, 0);
 	if(ret)
 	{
 		regerror(ret, &(t->date_prefix), err,1024);
 		tm->tm_sec);
 }
 
+void ttail_tm_fprint(FILE *stream, const struct tm* tm)
+{
+	if(tm->tm_year >= 0)
+	{
+		fprintf(stream, "year : %d ", tm->tm_year + 1900);
+	}
+	if(tm->tm_mon >= 0)
+	{
+		fprintf(stream, "month : %d ", tm->tm_mon);
+	}
+	if(tm->tm_mday >= 0)
+	{
+		fprintf(stream, "day : %d ", tm->tm_mday);
+	}
+	if(tm->tm_hour >= 0)
+	{
+		fprintf(stream, "hour : %d ", tm->tm_hour);
+	}
+	if(tm->tm_min >= 0)
+	{
+		fprintf(stream, "minute : %d ", tm->tm_min);
+	}
+	if(tm->tm_sec >= 0)
+	{
+		fprintf(stream, "secs : %d ", tm->tm_sec);
+	}
+}
+