dictionary order bug

[John Mocenigo]

The dictionary order option does not sort in dictionary order:

$ echo 'aB\nab\nAb' | sort -d -f
ab
aB
Ab

It should be:

Ab
aB
ab

Certainly Merriam-Webster lists Ab before ab.

$ sort --version
sort (textutils) 2.0.21
Written by Mike Haertel and Paul Eggert.

Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

--
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