Lint on pkg/* packages

- pkg/useragent
- pkg/units
- pkg/ulimit
- pkg/truncindex
- pkg/timeoutconn
- pkg/term
- pkg/tarsum
- pkg/tailfile
- pkg/systemd
- pkg/stringutils
- pkg/stringid
- pkg/streamformatter
- pkg/sockets
- pkg/signal
- pkg/proxy
- pkg/progressreader
- pkg/pools
- pkg/plugins
- pkg/pidfile
- pkg/parsers
- pkg/parsers/filters
- pkg/parsers/kernel
- pkg/parsers/operatingsystem

Signed-off-by: Vincent Demeester <vincent@sbr.pm>

pools/pools.go

@@ -18,14 +18,15 @@ import (
 )
 
 var (
-	// Pool which returns bufio.Reader with a 32K buffer
+	// BufioReader32KPool is a pool which returns bufio.Reader with a 32K buffer.
 	BufioReader32KPool *BufioReaderPool
-	// Pool which returns bufio.Writer with a 32K buffer
+	// BufioWriter32KPool is a pool which returns bufio.Writer with a 32K buffer.
 	BufioWriter32KPool *BufioWriterPool
 )
 
 const buffer32K = 32 * 1024
 
+// BufioReaderPool is a bufio reader that uses sync.Pool.
 type BufioReaderPool struct {
 	pool sync.Pool
 }
@@ -57,7 +58,7 @@ func (bufPool *BufioReaderPool) Put(b *bufio.Reader) {
 	bufPool.pool.Put(b)
 }
 
-// Copy is a convenience wrapper which uses a buffer to avoid allocation in io.Copy
+// Copy is a convenience wrapper which uses a buffer to avoid allocation in io.Copy.
 func Copy(dst io.Writer, src io.Reader) (written int64, err error) {
 	buf := BufioReader32KPool.Get(src)
 	written, err = io.Copy(dst, buf)
@@ -77,6 +78,7 @@ func (bufPool *BufioReaderPool) NewReadCloserWrapper(buf *bufio.Reader, r io.Rea
 	})
 }
 
+// BufioWriterPool is a bufio writer that uses sync.Pool.
 type BufioWriterPool struct {
 	pool sync.Pool
 }