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>

tarsum/versioning.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 )
 
-// versioning of the TarSum algorithm
+// Version is used for versioning of the TarSum algorithm
 // based on the prefix of the hash used
 // i.e. "tarsum+sha256:e58fcf7418d4390dec8e8fb69d88c06ec07039d651fedd3aa72af9972e7d046b"
 type Version int
@@ -17,7 +17,7 @@ type Version int
 const (
 	Version0 Version = iota
 	Version1
-	// NOTE: this variable will be either the latest or an unsettled next-version of the TarSum calculation
+	// VersionDev this constant will be either the latest or an unsettled next-version of the TarSum calculation
 	VersionDev
 )
 
@@ -33,7 +33,7 @@ func VersionLabelForChecksum(checksum string) string {
 	return checksum[:sepIndex]
 }
 
-// Get a list of all known tarsum Version
+// GetVersions gets a list of all known tarsum versions.
 func GetVersions() []Version {
 	v := []Version{}
 	for k := range tarSumVersions {
@@ -59,7 +59,7 @@ func (tsv Version) String() string {
 	return tarSumVersions[tsv]
 }
 
-// GetVersionFromTarsum returns the Version from the provided string
+// GetVersionFromTarsum returns the Version from the provided string.
 func GetVersionFromTarsum(tarsum string) (Version, error) {
 	tsv := tarsum
 	if strings.Contains(tarsum, "+") {