bug#16561: Bug report for 'head' (and 'wc' et. al.)

[LGUC]

   THE INCOMPLETE ATTACMENT! (working on sunday makes not my lucky day.
   Sorry for the inconveniences!.
   Please disregard the previous 2 mails)
     __________________________________________________________________

   Caracas, Sunday 26th, 2014
   Ref: Bug report for 'head' (and 'wc' et. al.)
   Dear friends:
     Please find attached the text file 'head-tst.txt'

     As you easily can see, the following command fails and do not print
   anything, even if the file has:  6 lines,  49 words and  250 chars:
     'head -n -0 head-tst.txt'
     The last line on the file does NOT end with a '\n', and this seems
   to be the base of the problem. If you add the last '\n', 'head' works
   pretty fine.
     So this seems to be a problem with the definition of a 'text line':
   I guess that a line that has around 68 normal chars and 13 spaces, is
   a good candidate to be considered as a line.
     I found the same problem in several other core utils, being the
   most remarcable 'wc'. If you executes:
     'wc head-tst.txt'
     you will get:
       5  49 250 head-tst.txt
     what is wrong, as the file has six (6) lines instead of five (5).
   The last one line is missing due to the fact that it does not
   include a '\n' at the end.
     In 1998 I fix 'wc', and I have attached 'wc-fix.c' including only
   the most remarkable aspects, in case it could be of any help.
   Best regards,
   Luis G. Uribe C.
     __________________________________________________________________

   Attachments inside 'head-tst.zip':
   - 'head-tst.txt': text file that makes 'head' core utility to fail
   - 'wc-fix.c':     fix to same problem, applyied to 'wc' in 1998
   Software ID:
      GNU coreutils 8.15  January 2012  HEAD(1)
      (Cygwin)

head-tst.zip
Description: Binary data