patch 7.4.1740

Problem:    syn-cchar defined with matchadd() does not appear if there are no
            other syntax definitions which matches buffer text.
Solution:   Check for startcol. (Ozaki Kiichi, haya14busa, closes #757)

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1740,
 /**/
     1739,
 /**/