bug#20954: wc - linux

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tag 20954 + notabug
close 20954
thanks

Maybe we did not understand.
I don't want change old definitions but create new option for wc or echo,
because this above examples not make logic sense,
( and it I want fix, however with sed is also fixed )
 however now I understand that they work correctly in accordance with accepted principles.

#  What is a text line? A text line by definition ends with a newline. This has been standardized to prevent
#  different implementations from implementing it differently and creating portability problems. Therefore
#  all standards compliant implementations must implement it in the same way to prevent portability
#  problems.

" wc -l " in most examples working correct,
because it " echo "  give's " \n " and "wc -l" count correct.
I  mentioned about "wc", because for me build option "wc -a" for "echo"  or "echo -m"
this is not important.
Maybe exist hope for example create option "m" to echo  , " echo -m "
which not will from new line, but first line if variable is empty
and from new line if is not empty  ?

example:

echo -m "" | wc -l
0

echo -m "e" | wc -l
1