contrib/win32/mercurial.ico

eol: improve hook failure output

Before, only the first failure was reported:

  abort: b.txt should not have CRLF line endings

while now all of them are listed:

  abort: end-of-line check failed:
    d.txt in a7040e68714f should not have CRLF line endings
    b.txt in fbcf9b1025f5 should not have CRLF line endings

As first suggested by Antoine Pitrou <[e-mail]>

(binary:image/vnd.microsoft.icon)