libpod: reset state error on init

If we manage to init/start a container successfully we should unset any
previously stored state errors. Otherwise a user might be confused why
there is an error in the state about some old error even though the
container works/runs.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

libpod/container_internal.go

@@ -1106,6 +1106,9 @@ func (c *Container) init(ctx context.Context, retainRetries bool) error {
 	c.state.RestoreLog = ""
 	c.state.ExitCode = 0
 	c.state.Exited = false
+	// Reset any previous errors as we try to init it again, either it works and we don't
+	// want to keep an old error around or a new error will be written anyway.
+	c.state.Error = ""
 	c.state.State = define.ContainerStateCreated
 	c.state.StoppedByUser = false
 	c.state.RestartPolicyMatch = false