Re: [PATCH] pretty-format: add append line-feed format specifier

Harry Jeffery [off-list ref] writes:

Add a new format prefix `_` that causes a line-feed to be inserted
immediately after an expansion if the expansion expands to a non-empty
string. This is useful for when you would like a line for an expansion
to be prepended, but only when the expansion expands to a non empty
string, such as inserting a '%_d' expansion before a commit to show any
refs pointing towards it.

Is this different from "%n%-d"?