Cleaned up some misdirection when copying a string's value.

Cleaned up some misdirection when copying a string's value.

A weird case occurred where a char* string was referencing array location
'0', then was being pass-by reference to appear as a "char*" which simply
returned the origin char* string.

Change-Id: I014207a4050d69cf5b8e2360f6c8d9d82a6c628e
Signed-off-by: Joseph Morrow <joseph.l.morrow@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/542
Reviewed-by: Sakthivel Samidurai <sakthivel.samidurai@intel.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Erich Keane <erich.keane@intel.com>