patch 7.4.1665
Problem:    Crash when calling job_start() with a NULL string. (Dominique)
Solution:   Check for an invalid argument.
diff --git a/src/version.c b/src/version.c
index e925e41..e183717 100644
--- a/src/version.c
+++ b/src/version.c
@@ -749,6 +749,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1665,
+/**/
     1664,
 /**/
     1663,