./configure --with-berkeley-db gives incomplete message

Folks,

the configure script for 1.14.5 gives me:
  --with-berkeley-db[=HEADER:INCLUDES:LIB_SEARCH_DIRS:LIBS]
                          The Subversion Berkeley DB based filesystem library
                          requires Berkeley DB $db_version or $db_alt_version.
                          If you specify `--without-berkeley-db', that library
                          will not be built. If you omit the argument of this
                          option completely, the configure script will use
                          Berkeley DB used by APR-UTIL.

$db_alt_version is defined with "5.x", but not rendered. $db_version is set dynamically with a case and is valid as well.

Maybe someone wants to check why they are not interpolated for help output.

Michael