LibCore: Pass correct number of arguments to the Process on Windows #3021
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Incorrect behavior of CreateProcess:
CreateProcess("a.exe", "b c", ...) ->
a.exe::main::argv == ["b", "c"] (wrong)
CreateProcess(0, "a.exe b c", ...) ->
a.exe::main::argv == ["a.exe", "b", "c"] (right)
https://learn.microsoft.com/en-us/cpp/cpp/main-function-command-line-args
"If you use both the first and second arguments (lpApplicationName and
lpCommandLine), argv[0] may not be the executable name."
This means first argument of CreateProcess should never be used.
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Searching for executable in path is suppressed now by prepending "./"
Additional bonus of the new code: .exe extension does not need to be
specified.
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