git-gui: fix incorrect use of Tcl append command

diff --git a/lib/remote_add.tcl b/lib/remote_add.tcl
index 50029d0ceeee0fdab884754022e3015b3925f6f7..480a6b30d0a9c9aa4f667a618b0e852d637432dd 100644 (file)
--- a/lib/remote_add.tcl
+++ b/lib/remote_add.tcl
@@ -17,7 +17,7 @@ constructor dialog {} {
 
        make_dialog top w
        wm withdraw $top
-       wm title $top [append "[appname] ([reponame]): " [mc "Add Remote"]]
+       wm title $top [mc "%s (%s): Add Remote" [appname] [reponame]]
        if {$top ne {.}} {
                wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
        }