Escaping user input to key tool

[JudahGabriel]

Fixes the issue where e.g. the key password contains a hyphen.

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[JudahGabriel]

@googlebot I signed it!

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[andreban]

LGTM, Thank You!!

[PEConn]

You don't need the backslashes here since we're using a template string (eg, there's just " instead of \" on line 67).

[andreban]

PS: Even though it's not needed, the output is correct with the escapes.