Assemble: allow an array undergoing reshape to be started without backup file

Though not having the proper backup file can cause data corruption, it
is not enough to justify not being able to start the array at all.
So allow "--invalid-backup" to be specified which says "just continue
even if a backup cannot be restored".

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/ReadMe.c b/ReadMe.c
index 5dae87aa..57148492 100644
--- a/ReadMe.c
+++ b/ReadMe.c
@@ -190,6 +190,7 @@ struct option long_options[] = {
 
     /* For Grow */
     {"backup-file", 1,0, BackupFile},
+    {"invalid-backup",0,0,InvalidBackup},
     {"array-size", 1, 0, 'Z'},
 
     /* For Incremental */