In each case, it's the scalar value associated with the "description" key.
Normally in test262, this is written in either:
- block notation (indicated by '>' or '|'), or
- flow notation, single-line, on the same line as the key.
In the cases addressed by this PR, the value is instead written in:
- (1x) flow notation, *multi*-line, or
- (2x) flow notation, single-line, on the line *after* the key.
These are valid YAML, but they're styles that test262 doesn't otherwise use,
so could conceivably confuse people or harnesses.
This PR changes them to block notation.
