patch 8.2.3013: Vim: when debugging only first line of command is displayed

Problem:    Vim: when debugging only the first line of a command using line
            continuation is displayed.
Solution:   Find the next command and concatenate lines until that one.
            (closes #8392)

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3013,
 /**/
     3012,
 /**/