patch 7.4.2044
Problem:    filter() and map() either require a string or defining a function.
Solution:   Support lambda, a short way to define a function that evaluates an
            expression. (Yasuhiro Matsumoto, Ken Takata)
diff --git a/src/version.c b/src/version.c
index 9acfbe8..745bfd2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -759,6 +759,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2044,
+/**/
     2043,
 /**/
     2042,