[gthumb] Mark missing strings for translation

[Piotr Drąg <piotrdrag src gnome org>]

commit 3066db77a4b42e2aaf97d7f9615815fd53ca5287
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Thu Sep 28 13:51:52 2017 +0200

    Mark missing strings for translation

 .../data/ui/find-duplicates-dialog.ui              |    6 +++---
 .../picasaweb/data/ui/export-to-picasaweb.ui       |    6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/extensions/find_duplicates/data/ui/find-duplicates-dialog.ui 
b/extensions/find_duplicates/data/ui/find-duplicates-dialog.ui
index 676d06e..9fecf2e 100644
--- a/extensions/find_duplicates/data/ui/find-duplicates-dialog.ui
+++ b/extensions/find_duplicates/data/ui/find-duplicates-dialog.ui
@@ -363,7 +363,7 @@
                                         </child>
                                         <child>
                                           <object class="GtkTreeViewColumn" id="file_treeviewcolumn">
-                                            <property name="title">File</property>
+                                            <property name="title" translatable="yes">File</property>
                                             <property name="clickable">True</property>
                                             <property name="reorderable">True</property>
                                             <property name="sort_indicator">True</property>
@@ -378,7 +378,7 @@
                                         <child>
                                           <object class="GtkTreeViewColumn" id="modified_treeviewcolumn">
                                             <property name="sizing">autosize</property>
-                                            <property name="title">Last modified</property>
+                                            <property name="title" translatable="yes">Last 
modified</property>
                                             <property name="clickable">True</property>
                                             <property name="reorderable">True</property>
                                             <child>
@@ -392,7 +392,7 @@
                                         <child>
                                           <object class="GtkTreeViewColumn" id="position_treeviewcolumn">
                                             <property name="resizable">True</property>
-                                            <property name="title">Position</property>
+                                            <property name="title" translatable="yes">Position</property>
                                             <property name="clickable">True</property>
                                             <property name="reorderable">True</property>
                                             <child>
diff --git a/extensions/picasaweb/data/ui/export-to-picasaweb.ui 
b/extensions/picasaweb/data/ui/export-to-picasaweb.ui
index 729d57a..eb0c9c7 100644
--- a/extensions/picasaweb/data/ui/export-to-picasaweb.ui
+++ b/extensions/picasaweb/data/ui/export-to-picasaweb.ui
@@ -264,7 +264,7 @@
                             </child>
                             <child>
                               <object class="GtkTreeViewColumn" id="name_treeviewcolumn">
-                                <property name="title">Name</property>
+                                <property name="title" translatable="yes">Name</property>
                                 <property name="expand">True</property>
                                 <property name="clickable">True</property>
                                 <property name="sort_column_id">1</property>
@@ -272,7 +272,7 @@
                             </child>
                             <child>
                               <object class="GtkTreeViewColumn" id="treeviewcolumn3">
-                                <property name="title">Used</property>
+                                <property name="title" translatable="yes">Used</property>
                                 <child>
                                   <object class="GtkCellRendererText" id="cellrenderertext4"/>
                                   <attributes>
@@ -283,7 +283,7 @@
                             </child>
                             <child>
                               <object class="GtkTreeViewColumn" id="treeviewcolumn2">
-                                <property name="title">Remaining photos</property>
+                                <property name="title" translatable="yes">Remaining photos</property>
                                 <child>
                                   <object class="GtkCellRendererText" id="cellrenderertext2"/>
                                   <attributes>