fix some comments

broadcast/utils_test.go

cmix/client.go

cmix/follow.go

cmix/gateway/hostPool.go

cmix/interface.go

cmix/nodes/utils_test.go

connect/utils_test.go

e2e/fpGenerator_test.go

e2e/utils_test.go

fileTransfer/utils_test.go

fileTransfer2/connect/utils_test.go

fileTransfer2/e2e/utils_test.go

fileTransfer2/groupChat/utils_test.go

fileTransfer2/utils_test.go

registration/permissioning.go

single/listener_test.go

single/receivedRequest_test.go

single/utils_test.go

xxdk/cmix.go