Don't enable trace in set_trace test.

This leaves trace enabled afterwards, resulting in some
ugly test messages.

diff --git a/src/generator.ml b/src/generator.ml
index fa08688..19de0b7 100755 (executable)
--- a/src/generator.ml
+++ b/src/generator.ml
@@ -806,8 +806,8 @@ For more information on the architecture of libguestfs,
 see L<guestfs(3)>.");
 
   ("set_trace", (RErr, [Bool "trace"]), -1, [FishAlias "trace"],
-   [InitNone, Always, TestOutputTrue (
-      [["set_trace"; "true"];
+   [InitNone, Always, TestOutputFalse (
+      [["set_trace"; "false"];
        ["get_trace"]])],
    "enable or disable command traces",
    "\