patch 8.0.0897: wrong error message for invalid term_finish value

Problem:    Wrong error message for invalid term_finish value
Solution:   Pass the right argument to emsg().

src/version.c

@@ -769,6 +769,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    897,
 /**/
     896,
 /**/