shell32: SHELL_execute() tries to extract program name and arguments from SHELLEXECUTEINFOW.lpFile

[Илья Басин]

At first sight there's a strange behavior in SHELL_execute() (read
ShellExecuteEx() ): at tries to extract program path and arguments
from SHELLEXECUTEINFOW.lpFile, if it's unquoted.
http://source.winehq.org/source/dlls/shell32/shlexec.c?v=wine-1.1.37#L1709
On WinXP at least ShellExecuteExA() doesn't do it/ haven't yet tested
with ShellExecuteExW(). This is harmful when you have 2 documents like
"C:\aaa.txt" and "C:\aaa.txt bbb.txt"

Found an old thread about this, but it seems abandoned.
http://www.mail-archive.com/wine-devel(a)winehq.org/msg57246.html