revset: simplify orderedlazyset creation in spanset method
We can simply use the `self.isascending` value instead of more complex if/else
clause. This get the code simpler.
Benchmarks show no performances harmed in the process.
#!/bin/rc
# 9mail - Mercurial email wrapper for upas/marshal
fn usage {
echo >[1=2] usage: mercurial/9mail -f from to [cc]
exit usage
}
from=()
cc=()
to=()
switch($1){
case -f
from=$2
case *
usage
}
to=($3)
if(~ $#* 4)
cc=(-C $4)
upasname=$from
upas/marshal $cc $to