kvargs: fix comments style
kvargs: fix comments style

A '*' is missing at 2 places, add them.

Fixes: e1a00536c8ed ("kvargs: add a new library to parse key/value arguments")
Fixes: 3ab385063cb9 ("kvargs: add get by key")

Signed-off-by: Olivier Matz <dfcc1510895413197abb4336e39bb0a3906cba71@6wind.com>
Reviewed-by: Xueming Li <a578f76ca98b1dec92e0d1baef814b93f3f2f3b4@nvidia.com>
Reviewed-by: David Marchand <f28529695cfa9e3e1eb84e7072aa626af4abb18e@redhat.com>
Acked-by: Ray Kinsella <64a50932049ddff830412e0fd9edb30198bf17f3@ashroe.eu>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk