There is a typo in the yum description for fence-agents-amt. Quoted below (as well as fence-agents-apc)

Name        : fence-agents-amt
Arch        : x86_64
Version     : 4.0.10
Release     : 1.fc20
Size        : 8.0 k
Repo        : updates/20/x86_64
Summary     : Fence agent for Intel AMT devices
URL         : http://sourceware.org/cluster/wiki/
License     : GPLv2+ and LGPLv2+
Description : The fence-agents-apc package contains a fence agent for AMT compatibile devices that are accessed via 3rd party software.

Name        : fence-agents-apc
Arch        : x86_64
Version     : 4.0.10
Release     : 1.fc20
Size        : 9.0 k
Repo        : updates/20/x86_64
Summary     : Fence agent for APC devices
URL         : http://sourceware.org/cluster/wiki/
License     : GPLv2+ and LGPLv2+
Description : The fence-agents-apc package contains a fence agent for APC devices that are accessed via telnet or SSH.


The description line for fence-agents-amt should read:
Description : The fence-agents-amt package contains a fence agent for AMT compatible devices that are accessed via 3rd party software.

The original has fence-agents-apc and misspells compatible.