patch 7.4.1160
Problem:    No error for jsondecode('"').
Solution:   Give an error message for missing double quote.
diff --git a/src/json.c b/src/json.c
index 442eaff..accb6cf 100644
--- a/src/json.c
+++ b/src/json.c
@@ -406,6 +406,7 @@
     }
     else
     {
+	EMSG(_(e_invarg));
 	res->v_type = VAR_SPECIAL;
 	res->vval.v_number = VVAL_NONE;
     }
diff --git a/src/version.c b/src/version.c
index e9d5c19..25ba3b9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1160,
+/**/
     1159,
 /**/
     1158,