[Libguestfs] [PATCH] nbdkit: fix condition in probe_filter

[Tomáš Golembiovský]

The tests assume probe_filter returns true if the filter is available
(and not the other way around).

Signed-off-by: Tomáš Golembiovský <tgolembi at redhat.com>
---
 v2v/nbdkit.ml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/v2v/nbdkit.ml b/v2v/nbdkit.ml
index 77d2a506..00122bec 100644
--- a/v2v/nbdkit.ml
+++ b/v2v/nbdkit.ml
@@ -142,7 +142,7 @@ let common_create ?bandwidth plugin_name plugin_args plugin_env =
     let cmd =
       sprintf "%s nbdkit --dump-plugin --filter=%s null >/dev/null"
               env_as_string filter_name in
-    Sys.command cmd <> 0
+    Sys.command cmd == 0
   in
 
   (* Adding the readahead filter is always a win for our access
-- 
2.24.1