[PATCH] ws2_32: Improved error handling in gethostname when name length is insufficient. (try 2)

[Qian Hong]

Windows supports NetBIOS name length max to 15, don't fail silently for 
Windows application with insufficient name length.

Try 2:
- Use sizeof instead of number for buffer length.
- Improve debugging message.
- Corrected a corner case of an if condition: change from (if namelen < 
len) to (if namelen <= len)
- Better corner case test.

Thanks a lot to Bruno for many helps! :)

---
  dlls/ws2_32/socket.c     | 31 +++++++++++++++++++++++++------
  dlls/ws2_32/tests/sock.c | 34 ++++++++++++++++++++++++++++++++++
  2 files changed, 59 insertions(+), 6 deletions(-)


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