patch 7.4.2154
Problem:    Test_communicate() fails sometimes.
Solution:   Add it to the flaky tests.
diff --git a/src/version.c b/src/version.c
index 992b374..c99fff6 100644
--- a/src/version.c
+++ b/src/version.c
@@ -764,6 +764,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2154,
+/**/
     2153,
 /**/
     2152,