Unusual behaviour of linux's sort command

Question

On Linux shell the result of echo -e \"arrays2 2\\narrays 2\\narrays3 2\" | sort is

arrays  2
arrays2 2
arrays3 2

and the result

Answer 1

If you change the locale from en_US.utf8 to the old default, it works the way you expect:

echo  -e "aaa\nfoo\narrays2 28\narrays 28\narrays3 28" | LC_ALL=C sort -
aaa
arrays 28
arrays2 28
arrays3 28
foo