checkpoint: fix comment
checkpoint: fix comment

Signed-off-by: Simon Schubert <51a3d642c59e957126c8c9975e756dadd0226d4c@zurich.ibm.com>

corecode/fabric,corecode/fabric,corecode/fabric,corecode/fabric,corecode/fabric,corecode/fabric,corecode/fabric,corecode/obc-peer