Update mpcdf_set_as_branch.py

mpcdf_set_as_branch.py

@@ -10,7 +10,7 @@ import osc.core
 import osc.cmdln
 
 
-@osc.cmdln.alias("mpcdf_setbr")
+@osc.cmdln.alias("mpcdf_setbranch")
 def do_mpcdf_set_as_branch(self, subcmd, opts, *args):
     """${cmd_name}: Convert a package to be a branch of another