Fix typos in Makefile

[jaden-young]

Closes #971

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[cdrage]

Hey @jaden-young thanks for the PR! Once you have signed the CLA we will be able to merge this :)

[jaden-young]

I've signed the CLA.

[hangyan]

/lgtm

[hangyan]

@jaden-young Thanks for you contribution!

[hangyan]

@cdrage Seems there are some errors after merge this PR, i'm looking on it.

[jaden-young]

That's interesting, my apologies for not testing. Are/were there files living somewhere with the target names?

[hangyan]

@jaden-young It's weird, the CI test for PR is OK. still looking on it.

[hangyan]

@cdrage Can you help restart the build or locate the error? Didn't find out why the build failed!

[cdrage]

Looks like CI passes now 👍 Odd that it did that!