[Qt] Debug window: replace "Build date" with "Datadir"

The build date does only makes sense for custom/self-compiled bitcoin-core versions because we are using static build-dates for our deterministic release builds.
Having a quick option to get the current datadir is much more valuable for debug purposes.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/qt/clientmodel.h b/src/qt/clientmodel.h
index 2fef6131c..db010f05c 100644
--- a/src/qt/clientmodel.h
+++ b/src/qt/clientmodel.h
@@ -76,6 +76,7 @@ public:
     bool isReleaseVersion() const;
     QString clientName() const;
     QString formatClientStartupTime() const;
+    QString dataDir() const;
 
 private:
     OptionsModel *optionsModel;