wc -l doesn't count partial lines

[wagnerdm]

If a file has no newline at the end of the last line, the last line  
doesn't get counted.  As a minimal test case, try

% echo foo >test && echo -n bar >>test && wc -l test
1

Actually, you can even see it in a smaller case:

% echo -n foo >test && wc -l test


But as an edge case, this one is actually slightly less likely to make  
people mad!  I could almost see an argument for "0" being the right  
answer here; nevertheless, the first example seems clearly wrong to me.

~d