libstc++.tdb should be libstdc++.tdb?

[sbryfcz]

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What did you do?

I tried to update my build phases with: libstc++.tdb

What did you expect to happen?

I expected to find that item in the prompt to add a build phase.

What happened instead?

I could not find that item. I think you meant libstdc++.tdb Maybe update the README?

[RobertBiehl]

@sbryfcz you are right, I'll update the README! Thanks!

[HenryHins]

I think you mean "libstdc++.tbd" notice its TBD not TDB. Took me half an hour to notice that :/