patch 8.0.0927: if a terminal job sends a blank title "running" is not shown

Problem:    If a terminal job sends a blank title "running" is not shown.
Solution:   When the title is blank make it empty.
diff --git a/src/version.c b/src/version.c
index 00aedce..d8a93da 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    927,
+/**/
     926,
 /**/
     925,