patch 7.4.1970

Problem:    Using ":insert" in an empty buffer sets the jump mark. (Ingo
            Karkat)
Solution:   Don't adjust marks when replacing the empty line in an empty
            buffer. (closes #892)

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1970,
 /**/
     1969,
 /**/