everything-pane: Fix leaked thumbnail path
everything-pane: Fix leaked thumbnail path

==9249== 20,480 bytes in 160 blocks are definitely lost in loss record 9,439
of 9,517
==9249==    at 0x4C222A8: realloc (vg_replace_malloc.c:476)
==9249==    by 0xB9EF33E: g_realloc (gmem.c:171)
==9249==    by 0xBA08FD6: g_string_maybe_expand (gstring.c:396)
==9249==    by 0xBA09C12: g_string_insert_len (gstring.c:731)
==9249==    by 0xB9D62C1: g_build_path_va (gfileutils.c:1466)
==9249==    by 0xB9D6588: g_build_filename (gfileutils.c:1736)
==9249==    by 0x7374C7E: mpl_utils_get_thumbnail_path (mpl-utils.c:61)
==9249==    by 0x4E3C6FF: _filter_out_unshowable_recent_items
(penge-everything-pane.c:353)
==9249==    by 0x4E3CFC1: _update_idle_cb (penge-everything-pane.c:383)
==9249==    by 0xB9E66C1: g_main_context_dispatch (gmain.c:1960)
==9249==    by 0xB9EA537: g_main_context_iterate (gmain.c:2591)
==9249==    by 0xB9EAA44: g_main_loop_run (gmain.c:2799)

Part of the fix for: http://bugs.meego.com/show_bug.cgi?id=1485

kkszysiu/gnomesocial,meego-netbook-ux/meego-panel-myzone,kkszysiu/gnomesocial,meego-netbook-ux/meego-panel-myzone