patch 8.0.1307: compiler warning for ignoring return value

Problem:    Compiler warning for ignoring return value of ftruncate(). (Tony
            Mechelynck)
Solution:   Assign returned value to "ignore".
diff --git a/src/version.c b/src/version.c
index c07635c..276f4fb 100644
--- a/src/version.c
+++ b/src/version.c
@@ -767,6 +767,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1307,
+/**/
     1306,
 /**/
     1305,