Rename a too-long-length name

diff --git a/t/050_metaclasses/041_moose_nonmoose_moose_chain_init_meta.t b/t/050_metaclasses/041_mnmcim.t
similarity index 100%
rename from t/050_metaclasses/041_moose_nonmoose_moose_chain_init_meta.t
rename to t/050_metaclasses/041_mnmcim.t