[gnome-software/mcatanzaro/comma] gs-plugin-fedora-pkgdb-collections: add missing comma

[Michael Catanzaro <mcatanzaro src gnome org>]

commit bb3471e1d5579757e4f3a4af25f702cb8992cfdc
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Thu Mar 11 10:20:50 2021 -0600

    gs-plugin-fedora-pkgdb-collections: add missing comma
    
    The prompt to upgrade to the new version is missing an Oxford comma.
    Oxford commas are nice.

 plugins/fedora-pkgdb-collections/gs-plugin-fedora-pkgdb-collections.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/plugins/fedora-pkgdb-collections/gs-plugin-fedora-pkgdb-collections.c 
b/plugins/fedora-pkgdb-collections/gs-plugin-fedora-pkgdb-collections.c
index e77665991..3a34e6e3f 100644
--- a/plugins/fedora-pkgdb-collections/gs-plugin-fedora-pkgdb-collections.c
+++ b/plugins/fedora-pkgdb-collections/gs-plugin-fedora-pkgdb-collections.c
@@ -281,7 +281,7 @@ _create_upgrade_from_info (GsPlugin *plugin, PkgdbItem *item)
        gs_app_set_name (app, GS_APP_QUALITY_LOWEST, item->name);
        gs_app_set_summary (app, GS_APP_QUALITY_LOWEST,
                            /* TRANSLATORS: this is a title for Fedora distro upgrades */
-                           _("Upgrade for the latest features, performance and stability improvements."));
+                           _("Upgrade for the latest features, performance, and stability improvements."));
        gs_app_set_version (app, app_version);
        gs_app_set_size_installed (app, 1024 * 1024 * 1024); /* estimate */
        gs_app_set_size_download (app, 256 * 1024 * 1024); /* estimate */