Upstream uses prefix=/ while we use prefix=/usr

Index: glibc-2.27/sysdeps/mach/hurd/i386/libc.abilist
===================================================================
--- glibc-2.27.orig/sysdeps/mach/hurd/i386/libc.abilist
+++ glibc-2.27/sysdeps/mach/hurd/i386/libc.abilist
@@ -641,7 +641,7 @@ GLIBC_2.2.6 _libc_intl_domainname D 0x5
 GLIBC_2.2.6 _longjmp F
 GLIBC_2.2.6 _mcleanup F
 GLIBC_2.2.6 _mcount F
-GLIBC_2.2.6 _nl_default_dirname D 0xe
+GLIBC_2.2.6 _nl_default_dirname D 0x12
 GLIBC_2.2.6 _nl_domain_bindings D 0x4
 GLIBC_2.2.6 _nl_msg_cat_cntr D 0x4
 GLIBC_2.2.6 _null_auth D 0xc