Fix ardour desktop file

source/ardour/debian/ardour.desktop

@@ -1,10 +1,10 @@
 [Desktop Entry]
 Version=1.0
-Name=Ardour-4
+Name=Ardour
 Comment=Digital Audio Workstation
-Exec=/usr/bin/ardour4
+Exec=/usr/bin/ardour
 Terminal=false
 Type=Application
-Icon=/opt/ardour4/share/icons/ardour_icon_48px.png
+Icon=/opt/ardour/share/icons/ardour-app-icon_osx.png
 Categories=AudioVideo;AudioEditing;Audio;Recorder;
 MimeType=application/x-ardour;