From 74be074e6f0347dd729ea450fd5811dc1500f2f8 Mon Sep 17 00:00:00 2001
From: Axel Burri <axel@tty0.ch>
Date: Sun, 4 Aug 2019 13:25:01 +0200
Subject: [PATCH] btrbk: remove warnings on superfluous "btrfs subvolume show"
 output

Silently accept compatible versions of btrfs-progs. Required keys are
being checked below, no need to warn here.

e.g. btrfs-progs >= v5.2.1 prints:

    Quota group:            0/258
      Limit referenced:     -
      Limit exclusive:      1.00GiB
      Usage referenced:     16.00KiB
      Usage exclusive:      16.00KiB
---
 btrbk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/btrbk b/btrbk
index d62a8a4..4339b7b 100755
--- a/btrbk
+++ b/btrbk
@@ -1001,7 +1001,7 @@ sub btrfs_subvolume_show($;@)
       if($trans{$key}) {
         $detail{$trans{$key}} = $value;
       } else {
-        WARN "Failed to parse subvolume detail \"$key: $value\" for: $vol->{PRINT}";
+        DEBUG "Ignoring subvolume detail \"$key: $value\" for: $vol->{PRINT}";
       }
     }
     DEBUG "Parsed " . scalar(keys %detail) . " subvolume detail items: $vol->{PRINT}";