patch 8.2.0648: semicolon search does not work in first line

Problem:    Semicolon search does not work in first line.
Solution:   Allow the cursor to be in line zero. (Christian Brabandt,
            closes #5996)

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    648,
 /**/
     647,
 /**/