Description of problem:
================================
Calling run_uri with a file:/// uri fails when agent is running on Fedora return invalid arguments however this call works on Rhel. 

running in debug mode shows:
sysconfig_os_download: curl request for URI 'file:///var/www/html/sysconfig-test' got response 0

[root@localhost tests]# curl file:///var/www/html/sysconfig-test
file { "/var/www/html/sysconfig-test":
    owner => root, group => root, mode => 440
}

Version-Release number of selected component (if applicable):
================================================================
v0.4.5-0.1

How reproducible:
================================
100%

Steps to Reproduce:
================================
1.   sysconfig.run_uri('file:///, 0, 'puppet', 'myKey')