warnings fixed (found by metalinter)

README.md

@@ -8,13 +8,16 @@ Golang package logwriter automates routine related to logging into files.
 Initial version finished. Stabilization, testing and benchmarkign are going.
 
 ## Concepts
-### Hot and Cold Log Files
+#### Hot and Cold Log Files
 There is a single **hot** log file. Usually file name is similar to daemon/service name and located in */var/log/servicename/*. There are **cold** log files. In accordance to rules specified by logwriter.Config,
 logwriter freezes content of **hot** file by moving content to new **cold** file.
 
-### Using sync.Mutex
+#### Using sync.Mutex
 If you don't need buffering (logwriter.Config.BufferSize==0) you can believe that file write executes synchronously.
 
+#### Stop! It's not a *unix way
+Well, everyone do not develop facebook or smth similar. If you don't want to 
+
 ## Features
 - [X] Folders for hot and cold log files configurable
 - [X] Using fixed name of file with latest log items

logwriter.go

@@ -356,13 +356,13 @@ func (lw *LogWriter) runner(cfg Config) {
 			lw.done <- true
 			return
 		case _ = <-bufferFlushTimer.C:
-			lw.flushBuffer(true)
+			_ = lw.flushBuffer(true)
 
 			// Reset timer to compensate i/o time
 			_ = bufferFlushTimer.Reset(cfg.BufferFlushInterval)
 			break
 		case _ = <-fileFreezeTimer.C:
-			lw.freezeHotFile(true)
+			_ = lw.freezeHotFile(true)
 
 			// Reset timer to compensate i/o time
 			_ = fileFreezeTimer.Reset(cfg.FreezeInterval)
@@ -376,7 +376,7 @@ func (lw *LogWriter) runner(cfg Config) {
 			if prev.Day() != now.Day() {
 				prev = now
 
-				lw.freezeHotFile(true)
+				_ = lw.freezeHotFile(true)
 
 				if cfg.FreezeInterval != 0 {
 					_ = fileFreezeTimer.Reset(cfg.FreezeInterval)
@@ -525,7 +525,6 @@ func (lw *LogWriter) initHotFile() (err error) {
 	}
 
 	lw.filelen = fstat.Size()
-	fmt.Println("len", lw.filelen)
 
 	// register lw.f in io.MultiWriter()
 	lw.setMode(lw.config.Mode)

logwriter_test.go

@@ -124,11 +124,9 @@ func BenchmarkFileWriteBufferedBySlice(b *testing.B) {
 
 	buf := make([]byte, 1024*1024)
 	k := 0
-	j := 0
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
-		j = copy(buf[k:], typicalLogItem)
-		k += j
+		k += copy(buf[k:], typicalLogItem)
 
 		if k > 1024*1024-1024 {
 			n, err := f.Write(buf[:k])