fix mixed tabs and spaces

libffado.spec

@@ -111,9 +111,9 @@ scons DESTDIR=%{buildroot} \
 # We need to install the xdg stuff manually
 mkdir -p %{buildroot}%{_datadir}/applications
 desktop-file-install --dir %{buildroot}%{_datadir}/applications \
-		     --add-category="Settings" \
+                     --add-category="Settings" \
-		     --set-icon=ffado \
+                     --set-icon=ffado \
-		     support/xdg/ffado.org-ffadomixer.desktop
+                     support/xdg/ffado.org-ffadomixer.desktop
 mkdir -p %{buildroot}%{_datadir}/icons/hicolor/64x64/apps
 ln -s ../../../../libffado/icons/hi64-apps-ffado.png \
     %{buildroot}%{_datadir}/icons/hicolor/64x64/apps/ffado.png