sort(1) -uf output inconsistent with manual page

[Mike Schloss]

> CONCLUSION:
>   The output should always be in lower case.  Changing the manual
> page  to  indicate  the  problem  will  only serve to confuse the
> situation.
> 

WRONG

CONCLUSION:
	Extreanous flags should not be added to utilites when there
already exists a perfectly good utility to perform that function.

	"sort -fu" caused some confusion.
	the output from "sort -f | uniq" is self explanatory.

	What you prbably want is :

	... | tr "[A-Z]" "[a-z]" | sort -f | uniq | ...