[Nut-upsuser] Driver macosx-ups failing on Yosemite

[Sundeep Mediratta]

OSX Yosemite 10.10.3
Nut version 2.6.5
Installed via Macports
Device is Cyberpower CP1000AVRLCD
Device is visible and is monitored in the OSX control panel

Error-

macosx-ups -DD -a cyberpower
Network UPS Tools - Mac OS X UPS meta-driver 1.0 (2.6.5-Unversioned directory)
Warning: This is an experimental driver.
Some features may not function correctly.

   0.000000	debug level is '2'
   0.000882	Matching power supply key names against regex '/UPS'
   0.000924	Matching power supply model names against regex 'CP1000AVRLCD'
   0.000968	Number of power supplies found: 1
2015-06-26 08:19:14.356 macosx-ups[45770:4001150] -[__NSCFDictionary _getCString:maxLength:encoding:]: unrecognized selector sent to instance 0x7fe5e1d00d50
2015-06-26 08:19:14.362 macosx-ups[45770:4001150] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary _getCString:maxLength:encoding:]: unrecognized selector sent to instance 0x7fe5e1d00d50'
*** First throw call stack:
(
	0   CoreFoundation                      0x00007fff8a12c03c __exceptionPreprocess + 172
	1   libobjc.A.dylib                     0x00007fff8726c76e objc_exception_throw + 43
	2   CoreFoundation                      0x00007fff8a12f0ad -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
	3   CoreFoundation                      0x00007fff8a074e24 ___forwarding___ + 1028
	4   CoreFoundation                      0x00007fff8a074998 _CF_forwarding_prep_0 + 120
	5   CoreFoundation                      0x00007fff89ffd11d CFStringGetCString + 173
	6   macosx-ups                          0x0000000104158ebb upsdrv_initups + 409
	7   macosx-ups                          0x0000000104159bd2 main + 1040
	8   libdyld.dylib                       0x00007fff9083e5c9 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
Abort trap: 6