Change the name of the "version update" button in target editor

ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/shared/target/messages.properties

@@ -52,7 +52,7 @@ ArgumentsFromContainerSelectionDialog_5=No arguments could be found in the insta
 BundleContainerTable_Btn_Text_Add=&Add...
 BundleContainerTable_Btn_Text_Edit=&Edit...
 BundleContainerTable_Btn_Text_Remove=&Remove
-BundleContainerTable_Btn_Text_Update=&Update
+BundleContainerTable_Btn_Text_Update=&Upgrade
 BundleContainerTable_Btn_Text_Refresh=Re&fresh
 BundleContainerTable_Btn_Text_ExpandAll=Ex&pand All
 BundleContainerTable_Btn_Text_CollapseAll=C&ollapse All
@@ -135,7 +135,7 @@ TargetContentsGroup_ManageUsing=Manage using:
 TargetContentsGroup_OtherPluginsParent=Other Plug-ins
 TargetContentsGroup_PluginMode=Pl&ug-ins
 TargetContentsGroup_resolveCancelled=Resolve Cancelled
-TargetLocationsGroup_update=Looks for newer versions of the target contents and updates them
+TargetLocationsGroup_update=Check for newer versions and update the location to use them.
 TargetLocationsGroup_refresh=Clears the cached target data and resolves the target, looking for newer versions of any artifacts
 TargetLocationsGroup_1=&Show location content
 TargetLocationsGroup_group_refresh=Refreshing...