Use goreleaser to build and release (#244)

Instead of using gox on one side and an action to release, we can merge
them together with goreleaser which will build for extra targets (arm,
mips if needed in the future) and it also takes care of creating
checksums, a source archive, and a changelog and creating a release with
all the artifacts.

All binaries should respect the old naming convention, so any scripts
out there should still work.

Signed-off-by: Itxaka <igarcia@suse.com>

vendor/google.golang.org/grpc/internal/grpclog/grpclog.go

@@ -19,6 +19,10 @@
 // Package grpclog (internal) defines depth logging for grpc.
 package grpclog
 
+import (
+	"os"
+)
+
 // Logger is the logger used for the non-depth log functions.
 var Logger LoggerV2
 
@@ -30,7 +34,7 @@ func InfoDepth(depth int, args ...interface{}) {
 	if DepthLogger != nil {
 		DepthLogger.InfoDepth(depth, args...)
 	} else {
-		Logger.Info(args...)
+		Logger.Infoln(args...)
 	}
 }
 
@@ -39,7 +43,7 @@ func WarningDepth(depth int, args ...interface{}) {
 	if DepthLogger != nil {
 		DepthLogger.WarningDepth(depth, args...)
 	} else {
-		Logger.Warning(args...)
+		Logger.Warningln(args...)
 	}
 }
 
@@ -48,7 +52,7 @@ func ErrorDepth(depth int, args ...interface{}) {
 	if DepthLogger != nil {
 		DepthLogger.ErrorDepth(depth, args...)
 	} else {
-		Logger.Error(args...)
+		Logger.Errorln(args...)
 	}
 }
 
@@ -57,8 +61,9 @@ func FatalDepth(depth int, args ...interface{}) {
 	if DepthLogger != nil {
 		DepthLogger.FatalDepth(depth, args...)
 	} else {
-		Logger.Fatal(args...)
+		Logger.Fatalln(args...)
 	}
+	os.Exit(1)
 }
 
 // LoggerV2 does underlying logging work for grpclog.
@@ -105,7 +110,10 @@ type LoggerV2 interface {
 // This is a copy of the DepthLoggerV2 defined in the external grpclog package.
 // It is defined here to avoid a circular dependency.
 //
-// This API is EXPERIMENTAL.
+// Experimental
+//
+// Notice: This type is EXPERIMENTAL and may be changed or removed in a
+// later release.
 type DepthLoggerV2 interface {
 	// InfoDepth logs to INFO log at the specified depth. Arguments are handled in the manner of fmt.Print.
 	InfoDepth(depth int, args ...interface{})