Fix spelling error of 'describe' in jasmine patch

[abierbaum]

Looks like a spelling error was preventing the jasmine patch from patching "describe".

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[abierbaum]

I signed it!

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CLAs look good, thanks!

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CLAs look good, thanks!

[abierbaum]

Just noticed this while looking through some stack traces. No idea if it is needed but looks like a typo.