patch 8.0.1705: when making a vertical split the mode message isn't updated

Problem:    When making a vertical split the mode message isn't always
            updated, "VISUAL" remains. (Alexei Averchenko)
Solution:   Only reset clear_cmdline when filling all columns of the last
            screen line. (Tom M. closes #2611)

src/version.c

@@ -762,6 +762,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1705,
 /**/
     1704,
 /**/