patch 8.2.0786: channel test is flaky on FreeBSD

Problem:    Channel test is flaky on FreeBSD.
Solution:   Set the sockiet TCP_NODELAY option. Adjust expected line count in
            netbeans test. (Ozaki Kiichi, closes #6097)

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    786,
 /**/
     785,
 /**/