Index: /trunk/Mars/mcore/ofits.h
===================================================================
--- /trunk/Mars/mcore/ofits.h	(revision 17297)
+++ /trunk/Mars/mcore/ofits.h	(revision 17298)
@@ -989,5 +989,5 @@
         const struct tm *tmp1 = gmtime(&t0);
 
-        std::string str(21, '\0');
+        std::string str(19, '\0');
         if (tmp1 && strftime(const_cast<char*>(str.data()), 20, "%Y-%m-%dT%H:%M:%S", tmp1))
             SetStr("DATE", str, "File creation date");