[sysprof] Use Unicode in translatable strings

[Piotr Drąg <piotrdrag src gnome org>]

commit 896bbaea895295ea70ea845b55d609142fe18a3d
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Wed May 16 18:12:56 2018 +0200

    Use Unicode in translatable strings
    
    See https://developer.gnome.org/hig/stable/typography.html

 lib/sources/sp-perf-source.c |    4 ++--
 src/sp-window.c              |    4 ++--
 tools/sysprof-cli.c          |    2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/lib/sources/sp-perf-source.c b/lib/sources/sp-perf-source.c
index b9fb566..3bdc722 100644
--- a/lib/sources/sp-perf-source.c
+++ b/lib/sources/sp-perf-source.c
@@ -477,7 +477,7 @@ sp_perf_get_tracepoint_fields (SpTracepointDesc           *tp_desc,
           g_set_error (error,
                        G_IO_ERROR,
                        G_IO_ERROR_FAILED,
-                       _("Sysprof failed to find field '%s'."),
+                       _("Sysprof failed to find field “%s”."),
                        optional_tp->fields[i]);
           g_free (contents);
           return FALSE;
@@ -490,7 +490,7 @@ sp_perf_get_tracepoint_fields (SpTracepointDesc           *tp_desc,
           g_set_error (error,
                        G_IO_ERROR,
                        G_IO_ERROR_FAILED,
-                       _("Sysprof failed to parse offset for '%s'."),
+                       _("Sysprof failed to parse offset for “%s”."),
                        optional_tp->fields[i]);
           g_free (contents);
           return FALSE;
diff --git a/src/sp-window.c b/src/sp-window.c
index ee77ff2..5245184 100644
--- a/src/sp-window.c
+++ b/src/sp-window.c
@@ -192,7 +192,7 @@ sp_window_update_subtitle (SpWindow *self)
       dt = g_date_time_new_from_timeval_local (&tv);
       str = g_date_time_format (dt, "%x %X");
 
-      label = g_strdup_printf (_("%s - %s"), filename, str);
+      label = g_strdup_printf (_("%s — %s"), filename, str);
 
       gtk_label_set_label (self->subtitle, label);
     }
@@ -978,7 +978,7 @@ sp_window_open (SpWindow *self,
     {
       sp_window_notify_user (self,
                              GTK_MESSAGE_ERROR,
-                             _("The file \"%s\" could not be opened. Only local files are supported."),
+                             _("The file “%s” could not be opened. Only local files are supported."),
                              g_file_get_uri (file));
       return;
     }
diff --git a/tools/sysprof-cli.c b/tools/sysprof-cli.c
index 7ddcf13..fab85c6 100644
--- a/tools/sysprof-cli.c
+++ b/tools/sysprof-cli.c
@@ -103,7 +103,7 @@ main (gint   argc,
 
   sp_clock_init ();
 
-  context = g_option_context_new (_("[CAPTURE_FILE] - Sysprof"));
+  context = g_option_context_new (_("[CAPTURE_FILE] — Sysprof"));
   g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
 
   if (!g_option_context_parse (context, &argc, &argv, &error))