config: pad log level

longest that can be created is DPANIC, or 6 wide.

Upstream-Ref: https://github.com/uber-go/zap/blob/v1.24.0/zapcore/level.go#L135

config/context.go

@@ -8,6 +8,7 @@ package config
 
 import (
 	"context"
+	"fmt"
 	"strings"
 	"time"
 
@@ -36,7 +37,9 @@ func initLogger(ll string) *zap.Logger {
 	base.EncoderConfig.EncodeTime = func(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
 		enc.AppendInt64(t.Unix())
 	}
-	base.EncoderConfig.EncodeLevel = zapcore.CapitalLevelEncoder
+	base.EncoderConfig.EncodeLevel = func(l zapcore.Level, enc zapcore.PrimitiveArrayEncoder) {
+		enc.AppendString(fmt.Sprintf("%-6s", l.CapitalString()))
+	}
 	base.EncoderConfig.ConsoleSeparator = " "
 	base.DisableCaller = true
 	return zap.Must(base.Build())