Remove reference to FNM_EXTGLOB

Apparently this doesn't exist in JRuby. See:

https://github.com/jruby/jruby/issues/721

Change-Id: Idb9c80789dc98ba5b34b0b4c4e7cc132ff6a932a
Reviewed-on: http://gerrit.causes.com/40421
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>