[gnome-calendar] Use Unicode in translatable strings

[Piotr Drąg <piotrdrag src gnome org>]

commit 4cc24c8c4c5a064b7ab931ed6a82f52d2b95e640
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Fri Nov 11 17:21:19 2016 +0100

    Use Unicode in translatable strings
    
    See https://developer.gnome.org/hig/stable/typography.html
    
    https://bugzilla.gnome.org/show_bug.cgi?id=772263

 data/appdata/org.gnome.Calendar.appdata.xml.in |    2 +-
 src/gcal-application.c                         |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/data/appdata/org.gnome.Calendar.appdata.xml.in b/data/appdata/org.gnome.Calendar.appdata.xml.in
index 7023746..fa9c66f 100644
--- a/data/appdata/org.gnome.Calendar.appdata.xml.in
+++ b/data/appdata/org.gnome.Calendar.appdata.xml.in
@@ -12,7 +12,7 @@
       GNOME Calendar is a simple and beautiful calendar application designed to perfectly fit the GNOME 
desktop. By reusing the components which the GNOME desktop is build on, Calendar nicely integrates with the 
GNOME ecosystem.
     </_p>
     <_p>
-      We aim to find the perfect balance between nicely crafted features and user-centred usability. No 
excess, no lacks. You'll feel comfortable using Calendar, like you've been using it for ages!
+      We aim to find the perfect balance between nicely crafted features and user-centred usability. No 
excess, no lacks. You’ll feel comfortable using Calendar, like you’ve been using it for ages!
     </_p>
   </description>
 
diff --git a/src/gcal-application.c b/src/gcal-application.c
index 376a745..4ee4cae 100644
--- a/src/gcal-application.c
+++ b/src/gcal-application.c
@@ -319,7 +319,7 @@ gcal_application_command_line (GApplication            *app,
 
   self = GCAL_APPLICATION (app);
   argv = g_application_command_line_get_arguments (command_line, &argc);
-  context = g_option_context_new (N_("- Calendar management"));
+  context = g_option_context_new (N_("— Calendar management"));
   g_option_context_add_main_entries (context, gcal_application_goptions, GETTEXT_PACKAGE);
 
   error = NULL;