[PATCH] Don't include Hash::Utils::FieldHash twice

Attached patch fixes problem with GitLive-blead-550-g48e8cb2
that was causing Hash::Utils::FieldHash to be referenced twice
by the make file.

• [PATCH] Don't include Hash::Utils::FieldHash twice by Jerry D. Hedden
• Re: [PATCH] Don't include Hash::Utils::FieldHash twice by Nicholas Clark