updated for version 7.3.898

Problem:    Memory leak reported by valgrind in test 91.
Solution:   Only use default argument when needed.

src/version.c

@@ -728,6 +728,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    898,
 /**/
     897,
 /**/