badsalttest expects that crypt fails for unknown salt, but crypt-blowfish
doesn't.

Index: glibc-2.17/crypt/Makefile
===================================================================
--- glibc-2.17.orig/crypt/Makefile
+++ glibc-2.17/crypt/Makefile
@@ -31,7 +31,7 @@ libcrypt-routines := crypt-entry md5-cry
 
 libcrypt-routines += crypt_blowfish x86 crypt_gensalt wrapper
 
-tests := cert md5c-test sha256c-test sha512c-test badsalttest
+tests := cert md5c-test sha256c-test sha512c-test
 
 include ../Makeconfig