mime: Fix GOptionContext leak
Leak report
Direct leak of 88 byte(s) in 1 object(s) allocated from:
#0 0x5999c997bb69 in calloc (/usr/asan/bin/xfce4-mime-helper+0x16db69)
#1 0x770d1add50ca in g_malloc0 glib/gmem.c:133:13
#2 0x770d1addf873 in g_option_context_new glib/goption.c:208:13
#3 0x5999c99d0178 in main xfce4-settings/dialogs/mime-settings/xfce-mime-helper-main.c:125:13
Steps to reproduce
xfce4-mime-helper --query
Testing
- No issues were detected with LSan, ASan, or Valgrind when testing the patch