cmake DISTNAME_HAS_GIT_DATA examples

nfs-ganesha/nfs-ganesha src/CMakeLists.txt :423 

option(DISTNAME_HAS_GIT_DATA "Distribution package's name carries git data" OFF )

nfs-ganesha/nfs-ganesha src/CMakeLists.txt :1403 

message(STATUS "DISTNAME_HAS_GIT_DATA = ${DISTNAME_HAS_GIT_DATA}" )