[pitivi] layer: Do not use explicit concatenation for translatable tooltips

[Jean-FranÃois Fortin Tam <jfft src gnome org>]

commit 97eee97b68c95556f1385511a1c5770e43d50c82
Author: Paul Lange <palango gmx de>
Date:   Sun Aug 26 17:03:59 2012 +0200

    layer: Do not use explicit concatenation for translatable tooltips
    
    Fixes bug #682275

 pitivi/timeline/layer.py |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/pitivi/timeline/layer.py b/pitivi/timeline/layer.py
index 31c97e2..476cc4b 100644
--- a/pitivi/timeline/layer.py
+++ b/pitivi/timeline/layer.py
@@ -91,8 +91,8 @@ class BaseLayerControl(Gtk.VBox, Loggable):
 
         # 'Solo' toggle button
         self.solo_button = Gtk.ToggleButton()
-        self.solo_button.set_tooltip_markup(_("<b>Solo mode</b>\n" +
-                        "Other non-soloed layers will be disabled as long as " +
+        self.solo_button.set_tooltip_markup(_("<b>Solo mode</b>\n"
+                        "Other non-soloed layers will be disabled as long as "
                         "this is enabled."))
         solo_image = Gtk.Image()
         solo_image.set_from_icon_name("avatar-default-symbolic", Gtk.IconSize.MENU)
@@ -106,7 +106,7 @@ class BaseLayerControl(Gtk.VBox, Loggable):
         visible_option.connect("toggled", self._visibilityChangedCb)
         visible_option.set_active(True)
         visible_option.set_sensitive(False)
-        visible_option.set_tooltip_markup(_("<b>Enable or disable this layer</b>\n" +
+        visible_option.set_tooltip_markup(_("<b>Enable or disable this layer</b>\n"
                                     "Disabled layers will not play nor render."))
 
         # Upper bar