* Don't send nil requests.
* Fix import name and get rid of condition.
* Let registered encoder deal with nil requests.
* Break encode into encode and compress.
This fixes:
clientconn.go:948:3: should write m = cc.sc.Methods[method[:i+1]] instead of m, _ = cc.sc.Methods[method[:i+1]] (S1005)
encoding/proto/proto_test.go:43:5: should use !bytes.Equal(p.GetBody(), expectedBody) instead (S1004)
resolver/dns/dns_resolver.go:260:2: should merge variable declaration with assignment on next line (S1021)
resolver/dns/dns_resolver.go:344:2: should use 'return <expr>' instead of 'if <expr> { return <bool> }; return <bool>' (S1008)
This fixes:
benchmark/worker/benchmark_client.go:151:36: should use make([]*grpc.ClientConn, connCount) instead (S1019)
benchmark/worker/benchmark_client.go:231:47: should use make([]lockingHistogram, rpcCountPerConn * len(conns)) instead (S1019)
benchmark/worker/benchmark_client.go:343:39: should use make([]*stats.Histogram, len(bc.lockingHistograms)) instead (S1019)
benchmark/worker/benchmark_client.go:369:22: should use make([]uint32, len(mergedHistogram.Buckets)) instead (S1019)
encoding/encoding.go:85:47: should use make(map[string]Codec) instead (S1019)
proxy_test.go:116:26: should use make([]byte, len(msg)) instead (S1019)
