patch 8.0.1644: terminal API tests still fail

Problem:    Terminal API tests still fail.
Solution:   Explicitly set 'title' in the terminal job. (Ozaki Kiichi,
            closes #2750)
diff --git a/src/version.c b/src/version.c
index acca91a..1a8c10e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -767,6 +767,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1644,
+/**/
     1643,
 /**/
     1642,