N-13 [Oval] Misleading Comment

[Reinis-FRP]

Addresses audit issue: N-13 [Oval] Misleading Comment

The following misleading comment has been identified:

In ChainlinkSourceAdapter.sol , this comment says that if the data returned by the
_searchRoundDataAt function is uninitialized, the current price data is returned. However,
the latest price data will also be returned in case the _searchRoundDataAt function returns
initialized data that is older than maxAge() .

Consider fixing the comment in order to improve the overall clarity and readability of the
codebase.

This implements the recommended fix by elaborating the comment in ChainlinkSourceAdapter.sol.

[linear]

UMA-2655 N-13 [Oval] Misleading Comment