Fix case of timezone/grok_timezone options. (#4799)

internal/config/config.go

@@ -1442,7 +1442,7 @@ func getParserConfig(name string, tbl *ast.Table) (*parsers.Config, error) {
 	if node, ok := tbl.Fields["grok_timezone"]; ok {
 		if kv, ok := node.(*ast.KeyValue); ok {
 			if str, ok := kv.Value.(*ast.String); ok {
-				c.GrokTimeZone = str.Value
+				c.GrokTimezone = str.Value
 			}
 		}
 	}

plugins/inputs/logparser/logparser.go

@@ -27,7 +27,7 @@ type GrokConfig struct {
 	NamedPatterns      []string
 	CustomPatterns     string
 	CustomPatternFiles []string
-	TimeZone           string
+	Timezone           string
 }
 
 type logEntry struct {
@@ -137,7 +137,7 @@ func (l *LogParserPlugin) Start(acc telegraf.Accumulator) error {
 		GrokNamedPatterns:      l.GrokConfig.NamedPatterns,
 		GrokCustomPatterns:     l.GrokConfig.CustomPatterns,
 		GrokCustomPatternFiles: l.GrokConfig.CustomPatternFiles,
-		GrokTimeZone:           l.GrokConfig.TimeZone,
+		GrokTimezone:           l.GrokConfig.Timezone,
 		DataFormat:             "grok",
 	}
 

plugins/parsers/registry.go

@@ -123,7 +123,7 @@ type Config struct {
 	GrokNamedPatterns      []string
 	GrokCustomPatterns     string
 	GrokCustomPatternFiles []string
-	GrokTimeZone           string
+	GrokTimezone           string
 
 	//csv configuration
 	CSVColumnNames       []string `toml:"csv_column_names"`
@@ -185,7 +185,7 @@ func NewParser(config *Config) (Parser, error) {
 			config.GrokNamedPatterns,
 			config.GrokCustomPatterns,
 			config.GrokCustomPatternFiles,
-			config.GrokTimeZone)
+			config.GrokTimezone)
 	case "csv":
 		parser, err = newCSVParser(config.MetricName,
 			config.CSVHeaderRowCount,