If the hostname is localhost.localdomain or some other variant of localhost, and configure-and-quit=yes is set, then due to a copy & paste error NetworkManager sends invalid arguments to nm-iface-helper and the helper will report an error and fail exit.
Workaround is to set a persistent hostname that is not localhost.localdomain.
Fix is upstream as:
CommitDate: Thu Mar 12 14:38:01 2015 -0500
device: fix handling if DHCP hostname for configure-and-quit
In nm-1-0 already: a8833a4dbdafc7b4a5f3ce6021b9f203db2aefe7
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.