updated for version 7.3.821

Problem:    Build with OLE and Cygwin is broken. (Steve Hall)
Solution:   Select static or shared stdc library. (Ken Takta)

src/version.c

@@ -725,6 +725,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    821,
 /**/
     820,
 /**/