[readdir] convert qnx4
authorAl Viro <viro@zeniv.linux.org.uk>
Fri, 17 May 2013 19:17:59 +0000 (15:17 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Sat, 29 Jun 2013 08:56:38 +0000 (12:56 +0400)
... and use strnlen() instead of strlen() - it's done on untrusted data,
after all.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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