stdin for consul exec doesn't work on windows

[jirkafajfr]

I am running following configuration:

• chf01-pmtrm05 - consul 0.6.4 / CentOS 7.2
• chf01-pmweb20 - consul 0.6.4 / Windows Server 2012 R2

echo 'echo Hi' | consul exec -
    chf01-pmtrm05: Hi
    chf01-pmtrm05:
==> chf01-pmtrm05: finished with exit code 0
    chf01-pmweb20: 'C:\Users\vagrant\AppData\Local\Temp\rexec223480077' is not recognized as an internal or external command,
    chf01-pmweb20: operable program or batch file.
    chf01-pmweb20:
==> chf01-pmweb20: finished with exit code 1

windows version is trying to execute name of key instead of command itself

[slackpad]

Closing this against #2999.

[slackpad]

The stdin version still does shell escaping, but as of #3509 you can pass -shell=false to consul exec to get it to pass your arguments without any shenanigans.