Also had to wrap `__nss_files_fopen` in `libredirect` as this is the way now `nss` uses to retrieve file-databases[1]. [1] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=299210c1fa67e2dfb564475986fce11cd33db9ad;hp=469c03907b116c37c98d8ad7a9edac2bdbf3e934