Fixed Bug #66820 out-of-bounds memory access in fileinfo

Upstream fix:
https://github.com/glensc/file/commit/447558595a3650db2886cd2f416ad0beba965801

Notice, test changed, with upstream agreement:
-define OFFSET_OOB(n, o, i)	((n) < (o) || (i) >= ((n) - (o)))
+define OFFSET_OOB(n, o, i)	((n) < (o) || (i) >  ((n) - (o)))
NEWS
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  NEWS
  Fixed Bug #66820 out-of-bounds memory access in fileinfo
NEWS