patch 8.2.3158: strange error message when using islocked() with a number

Problem:    Strange error message when using islocked() with a number.
            (Yegappan Lakshmanan)
Solution:   Check that the name is empty.

src/version.c

@@ -755,6 +755,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3158,
 /**/
     3157,
 /**/