[PATCH] shell32: Fix an item identifier list leak (Valgrind).

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=53155

Your paranoid android.


=== debian9 (32 bit WoW report) ===

shell32:
shelllink.c:811: Test failed: save failed (0x80070020)
shelllink.c:811: Test failed: got 0x00000001
shelllink.c:811: Test failed: Didn't expect NULL
shelllink.c:506: Test failed: GetCurFile fails on shell32 < 5.0
shelllink.c:813: Test failed: GetIconLocation returned 'C:\users\winetest\Temp\test.txt' instead of 'C:\users\winetest\Temp\\test.txt'