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)
diff --git a/src/version.c b/src/version.c
index 232fbb0..d04f529 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    786,
+/**/
     785,
 /**/
     784,