patch 8.2.4971: Vim9: interpolated string seen as range

Problem:    Vim9: interpolated string seen as range.
Solution:   Recognize an interpolated string at the start of a command line.
            (closes #10434)

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4971,
 /**/
     4970,
 /**/