updated for version 7.4.273

Problem:    "make autoconf" and "make reconfig" may first run configure and
            then remove the output.
Solution:   Add these targets to the exceptions. (Ken Takata)

src/version.c

@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    273,
 /**/
     272,
 /**/