roken: Prefix getopt and getprogname

roken: Prefix getopt and getprogname

The roken symbols for getopt and getprogname are now prefixed with
'rk_'. Fix the map file so it lists the correct symbols.

Change-Id: I61adba7d5bec3e86b8e29d1eefda23df4ef91988
Reviewed-on: http://gerrit.openafs.org/7010
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>