New Coverity run

[Dan Kegel]

... and here are the new issues since the last run, all of type FORWARD_NULL.
If you don't have coverity access, see
http://scan.coverity.com/devfaq.html#account
for how to get it.

595     CryptDecodeObjectEx     dlls/crypt32/decode.c
596     CryptEncodeObjectEx     dlls/crypt32/encode.c
549     SLTG_ProcessCoClass     dlls/oleaut32/typelib.c
550     SLTG_ProcessDispatch    dlls/oleaut32/typelib.c
551     SLTG_ProcessInterface   dlls/oleaut32/typelib.c
552     SLTG_ProcessModule      dlls/oleaut32/typelib.c
824     SHGetFileInfoW  dlls/shell32/shell32_main.c
86      unpack_dde_message      dlls/user32/message.c
584     WINSPOOL_GetPrinterDriver       dlls/winspool.drv/info.c
825     WINSPOOL_EnumPrinters   dlls/winspool.drv/info.c
826     WINSPOOL_EnumPrinters   dlls/winspool.drv/info.c
827     WINSPOOL_EnumPrinters   dlls/winspool.drv/info.c
828     WINSPOOL_GetDriverInfoFromReg   dlls/winspool.drv/info.c
506     TREEVIEW_LButtonDown     dlls/comctl32/treeview.c