updated for version 7.3.751

Problem:    Test 61 is flaky, it fails once in a while.
Solution:   When it fails retry once.

src/version.c

@@ -725,6 +725,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    751,
 /**/
     750,
 /**/