[gnome-applets/wip/muktupavels/werror] multiload: fix -Wformat-nonliteral warning

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 3c91ffa13a9e61be912bef6cf05b3f6fb48c5c65
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sat Apr 4 20:13:00 2020 +0300

    multiload: fix -Wformat-nonliteral warning

 gnome-applets/multiload/multiload-applet.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)
---
diff --git a/gnome-applets/multiload/multiload-applet.c b/gnome-applets/multiload/multiload-applet.c
index 009df93fb..74e6a1cf8 100644
--- a/gnome-applets/multiload/multiload-applet.c
+++ b/gnome-applets/multiload/multiload-applet.c
@@ -245,7 +245,6 @@ multiload_applet_tooltip_update(LoadGraph *g)
                g_free(tx_in);
                g_free(tx_out);
        } else {
-               const char *msg;
                guint i, total_used, percent;
 
                for (i = 0, total_used = 0; i < (g->n - 1); i++)
@@ -254,15 +253,11 @@ multiload_applet_tooltip_update(LoadGraph *g)
                percent = 100.0f * total_used / g->draw_height;
                percent = MIN(percent, 100);
 
-               msg = ngettext("%s:\n"
-                              "%u%% in use",
-                              "%s:\n"
-                              "%u%% in use",
-                              percent);
-
-               tooltip_text = g_strdup_printf(msg,
-                                              name,
-                                              percent);
+               tooltip_text = g_strdup_printf (ngettext ("%s:\n%u%% in use",
+                                                         "%s:\n%u%% in use",
+                                                         percent),
+                                               name,
+                                               percent);
        }
 
        gtk_widget_set_tooltip_text(g->disp, tooltip_text);