fixed segmentation fault issue when parsing query with rt including period

fixed segmentation fault issue when parsing query with rt including period

fixed segmentation fault issue when parsing query with rt including period

Change-Id: Ibff0067acc8ac4df0b608c691dadedd50d320d3b
Signed-off-by: Jaewook Jung <jw0213.jung@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/9919
Reviewed-by: Phil Coval <philippe.coval@osg.samsung.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jaehong Jo <jaehong.jo@samsung.com>
Reviewed-by: George Nash <george.nash@intel.com>
Reviewed-by: Larry Sachs <larry.j.sachs@intel.com>
Reviewed-by: Rick Bell <richard.s.bell@intel.com>
Reviewed-by: Jihun Ha <jihun.ha@samsung.com>
Reviewed-by: jihwan seo <jihwan.seo@samsung.com>
Reviewed-by: Ashok Babu Channa <ashok.channa@samsung.com>