message: cmake: fix tag extraction, again
diff: @@ -63,12 +63,14 @@ set(dronecode_sdk_install_include_dir "include/dronecode_sdk")
  set(dronecode_sdk_install_lib_dir ${lib_path})
  execute_process(
  - COMMAND git describe --abbrev=8 --dirty --always --tags | sed 's/v\\([0-9]*\\.[0-9]*\\.[0-9]*.*$\\)/\\1/'
  + COMMAND git describe --abbrev=8 --dirty --always --tags
  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
  OUTPUT_VARIABLE VERSION_STR
  OUTPUT_STRIP_TRAILING_WHITESPACE
  )
  +STRING(REGEX REPLACE v\([0-9]+.[0-9]+.[0-9]+.*$\) \\1 VERSION_STR ${VERSION_STR})
  +
  message(STATUS "Version: ${VERSION_STR}")
  add_definitions(-DDRONECODE_SDK_VERSION="${VERSION_STR}")
  