patch 7.4.1169
Problem:    The socket I/O is intertwined with the netbeans code.
Solution:   Start refactoring the netbeans communication to split off the
            socket I/O.  Add the +channel feature.
diff --git a/src/eval.c b/src/eval.c
index 860bc35..d08269f 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -13083,6 +13083,9 @@
 #ifdef FEAT_BYTEOFF
 	"byte_offset",
 #endif
+#ifdef FEAT_CHANNEL
+	"channel",
+#endif
 #ifdef FEAT_CINDENT
 	"cindent",
 #endif