[geary/mjog/406-offline-infobars] WIP: Add debugging to determine what GNetworkMonitor actually reports

[Michael Gratton <mjog src gnome org>]

commit 4fae285bf2e0ae4a1d29f7a98d02019b1e40f93c
Author: Michael Gratton <mike vee net>
Date:   Thu Sep 3 10:31:03 2020 +1000

    WIP: Add debugging to determine what GNetworkMonitor actually reports

 src/engine/util/util-connectivity-manager.vala | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/src/engine/util/util-connectivity-manager.vala b/src/engine/util/util-connectivity-manager.vala
index 109d14ebe..d12ebdb6c 100644
--- a/src/engine/util/util-connectivity-manager.vala
+++ b/src/engine/util/util-connectivity-manager.vala
@@ -231,6 +231,8 @@ public class Geary.ConnectivityManager : BaseObject {
     }
 
     private inline void set_reachable(bool reachable) {
+        debug("Setting reachable from %s to %s",
+              this.is_reachable.to_string(), reachable.to_string());
         // Coalesce changes to is_reachable, since Vala <= 0.34 always
         // fires notify signals on set, even if the value doesn't
         // change. 0.36 fixes that, so pull this test out when we can