realpath
)Require: file_exists
# Return the canonicalized absolute pathname (see POSIX function `realpath`)
#
# Require: `file_exists`
fun realpath: String do
var cs = to_cstring.file_realpath
assert file_exists
var res = cs.to_s
cs.free
return res
end
lib/core/file.nit:1029,2--1038,4