patch 8.0.0031
Problem:    After ":bwipeout" 'fileformat' is not set to the right default.
Solution:   Get the default from 'fileformats'. (Mike Williams)
diff --git a/src/version.c b/src/version.c
index 07b3da7..39662f6 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    31,
+/**/
     30,
 /**/
     29,