[gnome-initial-setup] Use Unicode in translatable strings

[Piotr Drąg <piotrdrag src gnome org>]

commit ec90ee20e949b032b6fb8a4fb8619144fe8174f9
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Thu Nov 10 13:42:46 2016 +0100

    Use Unicode in translatable strings
    
    See https://developer.gnome.org/hig/stable/typography.html
    
    https://bugzilla.gnome.org/show_bug.cgi?id=774203

 gnome-initial-setup/gnome-initial-setup.c    |    2 +-
 gnome-initial-setup/pages/account/um-utils.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gnome-initial-setup/gnome-initial-setup.c b/gnome-initial-setup/gnome-initial-setup.c
index 600e730..5671cae 100644
--- a/gnome-initial-setup/gnome-initial-setup.c
+++ b/gnome-initial-setup/gnome-initial-setup.c
@@ -220,7 +220,7 @@ main (int argc, char *argv[])
 
   g_unsetenv ("GIO_USE_VFS");
 
-  context = g_option_context_new (_("- GNOME initial setup"));
+  context = g_option_context_new (_("— GNOME initial setup"));
   g_option_context_add_main_entries (context, entries, NULL);
 
   g_option_context_parse (context, &argc, &argv, NULL);
diff --git a/gnome-initial-setup/pages/account/um-utils.c b/gnome-initial-setup/pages/account/um-utils.c
index 0ac8c95..00133a7 100644
--- a/gnome-initial-setup/pages/account/um-utils.c
+++ b/gnome-initial-setup/pages/account/um-utils.c
@@ -248,7 +248,7 @@ is_valid_username (const gchar *username, gchar **tip)
                         *tip = g_strdup_printf (_("The username is too long."));
                 }
                 else if (username[0] == '-') {
-                        *tip = g_strdup (_("The username cannot start with a ‘-’."));
+                        *tip = g_strdup (_("The username cannot start with a “-”."));
                 }
                 else {
                         *tip = g_strdup (_("The username should only consist of upper and lower case letters 
from a-z, digits and the following characters: . - _"));