Add File::FNM_SYSCASE constant
Add File::FNM_SYSCASE constant

Appears to always be defined as zero. Weird file, I can't entirely understand
what it's meant to indicate, especially since there are zero docs around it.

grubby/grubby,kachick/grubby,rajthilakmca/grubby,rajthilakmca/grubby,grubby/grubby,slawosz/grubby,slawosz/grubby,slawosz/grubby,kachick/grubby,kachick/grubby,rajthilakmca/grubby,grubby/grubby