fix 8f14f422e0536, port_prefix already includes colon

diff --git a/gtk2_ardour/mixer_strip.cc b/gtk2_ardour/mixer_strip.cc
index db5d70bc85e19d97a063d746fe3964a1ceed79ba..adb18dec24bdc9d931d83319a531eb7782cb2d92 100644 (file)
--- a/gtk2_ardour/mixer_strip.cc
+++ b/gtk2_ardour/mixer_strip.cc
@@ -1365,7 +1365,7 @@ MixerStrip::update_io_button (boost::shared_ptr<ARDOUR::Route> route, Width widt
                        // "ardour:Master/" -> "Master"
                        string::size_type slash = ardour_track_name.find("/");
                        if (slash != string::npos) {
-                               const size_t ppps = RouteUI::program_port_prefix.size () + 1; // "ardour:"
+                               const size_t ppps = RouteUI::program_port_prefix.size (); // "ardour:"
                                label << ardour_track_name.substr (ppps, slash - ppps);
                                have_label = true;
                        }