patch 8.2.0671: Haiku: compiler warnings

Problem:    Haiku: compiler warnings.
Solution:   Avoid the warnings. Drop display_errors() copy. (Emir Sari,
            closes #6018)
diff --git a/src/version.c b/src/version.c
index 8b9fec5..5e35da8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    671,
+/**/
     670,
 /**/
     669,