Fixed -q command line argument

With logrus' default formatter it boils down to a choice between the
colored version OR the human-unreadable list of fields, so the latter is
preferable.

README.md

@@ -54,10 +54,10 @@ To Do
 
 * Proper logging, work in progress:
   * Sending logs to... well, Graylog... through CLI switches.
-  * Fix file output when quiet mode flag is specified.
 * Document command line flags.
 * Add TLS options (skip checks / specify CA) for the Graylog API.
 * Read object ownership using `grn_permissions` to preserve privileges on users'
   own objects
 * Support granting ownership on objects
 * Use goroutines ? Maybe.
+* Custom log file/terminal output

main.go

@@ -86,6 +86,10 @@ func configureLogFile(path string) {
 // Configure the logging library based on the various command line flags.
 func configureLogging(flags cliFlags) {
 	log = getLoggingContext(flags.instance)
+	log.Logger.SetFormatter(&logrus.TextFormatter{
+		DisableColors: true,
+		FullTimestamp: true,
+	})
 	log.Logger.SetLevel(toLogLevel(flags.logLevel))
 	if flags.logFile != "" {
 		configureLogFile(flags.logFile)