TIL cp -a /source/. /target` copies all files from source to target not using wildcards

Why description of CGSize in Swift is so stupid? TODO: fix it. But before try to understand if there is any reason output of description of CGSize is so stupid.

From cp command: right copying of folders with files in Linux (russian) cp -a /source/. /target for copying all files from source to target not using wildcards. Not that easy topic as one could think.