cpack: proper naming for source package

cmake/tarantool_cpack.cmake

@@ -12,8 +12,8 @@ set (CPACK_SOURCE_IGNORE_FILES "\\\\.git" "_CPack_Packages"
     "mod/box/tarantool_box"
     "mod/box/tarantool_feeder" "install_manifest.txt"
     "Makefile" "cmake_install.cmake" "test/var/" "\\\\.a")
-set (CPACK_SOURCE_PACKAGE_FILE_NAME
-"tarantool-${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}-src")
+
+set (CPACK_SOURCE_PACKAGE_FILE_NAME "tarantool-${TARANTOOL_VERSION}-src")
 #
 # Provide options for the binary distribution.
 #