MacOS X: fix strings in UI

(cherry picked from commit 106dd3cb1540824f3b217a6b4bc2360d7bf00881)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/gui/macosx/open.m

@@ -53,7 +53,7 @@
 NSArray               *qtkvideoDevices;
 #define setEyeTVUnconnected \
 [o_capture_lbl setStringValue: _NS("No device is selected")]; \
-[o_capture_long_lbl setStringValue: _NS("Any device is not selected.\n\nChose abailable device in above pull-down menu\n.")]; \
+[o_capture_long_lbl setStringValue: _NS("No device is selected.\n\nChoose available device in above pull-down menu\n.")]; \
 [o_capture_lbl displayIfNeeded]; \
 [o_capture_long_lbl displayIfNeeded]; \
 [self showCaptureView: o_capture_label_view]