[gparted] Return constant reference from OperationDetail::get_treepath() (!94)

[Curtis Gedak <gedakc src gnome org>]

commit 901f03c19d26e72a72bdcd9d80b0c1d08e63b2e3
Author: Mike Fleetwood <mike fleetwood googlemail com>
Date:   Sat Nov 6 13:39:04 2021 +0000

    Return constant reference from OperationDetail::get_treepath() (!94)
    
    Closes !94 - Make more getter methods use return-by-constant-reference

 include/OperationDetail.h | 2 +-
 src/OperationDetail.cc    | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/include/OperationDetail.h b/include/OperationDetail.h
index bf898dff..722975c4 100644
--- a/include/OperationDetail.h
+++ b/include/OperationDetail.h
@@ -63,7 +63,7 @@ public:
        void set_success_and_capture_errors( bool success );
        OperationDetailStatus get_status() const ;
        void set_treepath( const Glib::ustring & treepath ) ;
-       Glib::ustring get_treepath() const ;
+       const Glib::ustring& get_treepath() const;
        Glib::ustring get_elapsed_time() const ;
        
        void add_child( const OperationDetail & operationdetail ) ;
diff --git a/src/OperationDetail.cc b/src/OperationDetail.cc
index 89c15dc3..7447d90c 100644
--- a/src/OperationDetail.cc
+++ b/src/OperationDetail.cc
@@ -125,7 +125,8 @@ void OperationDetail::set_treepath( const Glib::ustring & treepath )
        this ->treepath = treepath ;
 }
 
-Glib::ustring OperationDetail::get_treepath() const
+
+const Glib::ustring& OperationDetail::get_treepath() const
 {
        return treepath ;
 }