RFR: 8229872: (fs) Increase buffer size used with getmntent

[Florian Weimer]

* Vladimir Kempik:

> Hello
>
> Thanks for comments
>
> updated webrev including all mentioned things.
>
> http://cr.openjdk.java.net/~vkempik/8229872/webrev.08/

In src/java.base/linux/native/libnio/fs/LinuxNativeDispatcher.c:

+    int buflen = (int)bufLen;

The buffer size should be size_t, for consistency with the possible
return values of Java_sun_nio_fs_UnixNativeDispatcher_getlinelen.

Thanks,
Florian