[gnome-applets] mini-commander: check return value

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 2b677ab2f311adcd82473b0c0750d371f1288254
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Thu Mar 3 14:44:55 2022 +0200

    mini-commander: check return value
    
    Coverity CID: #1502711

 gnome-applets/mini-commander/exec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/gnome-applets/mini-commander/exec.c b/gnome-applets/mini-commander/exec.c
index 4647647d0..f40435517 100644
--- a/gnome-applets/mini-commander/exec.c
+++ b/gnome-applets/mini-commander/exec.c
@@ -39,7 +39,8 @@ static void beep (void);
 static void
 set_environment (gpointer display)
 {
-       g_setenv ("DISPLAY", display, TRUE);
+       if (!g_setenv ("DISPLAY", display, TRUE))
+               g_warning ("Failed to set DISPLAY environment variable");
 }
 
 void