log-local and log-fetched don't use commit refs

[rickhull]

gitalias/gitalias.txt

Line 705 in 08b0fb7

log-local = log --oneline origin..HEAD

git log A..B requires both A and B to resolve to revisions. HEAD does; origin does not. The valid remote-side refs would be things like:

• origin/main
• origin/master
• origin/HEAD
• @{upstream}

I think the last one is the most sensible / generic.