git-gui: fix incorrect use of Tcl append command

diff --git a/lib/remote_branch_delete.tcl b/lib/remote_branch_delete.tcl
index fcc06d03a1dfc4919f762d70e2809f29dab77390..5ba9fcadd17f315a4a47220f91f81ba964d64b08 100644 (file)
--- a/lib/remote_branch_delete.tcl
+++ b/lib/remote_branch_delete.tcl
@@ -26,7 +26,7 @@ constructor dialog {} {
        global all_remotes M1B use_ttk NS
 
        make_dialog top w
-       wm title $top [append "[appname] ([reponame]): " [mc "Delete Branch Remotely"]]
+       wm title $top [mc "%s (%s): Delete Branch Remotely" [appname] [reponame]]
        if {$top ne {.}} {
                wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
        }