patch 8.2.0947: readdirex() doesn't handle broken link properly

Problem:    Readdirex() doesn't handle broken link properly.
Solution:   Small fixes to readdirex(). (Christian Brabandt, closes #6226,
            closes #6213)
diff --git a/src/version.c b/src/version.c
index bce00b3..b0a0669 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    947,
+/**/
     946,
 /**/
     945,