fix unrelated "Docs are not updated" issue via generate-docs

site/content/en/docs/commands/start.md

@@ -111,7 +111,7 @@ minikube start [flags]
   -h, --help                             
       --log_backtrace_at traceLocation   when logging hits line file:N, emit a stack trace (default :0)
       --log_dir string                   If non-empty, write log files in this directory
-      --log_file string                  If non-empty, use this log file (default "")
+      --log_file string                  If non-empty, use this log file
       --log_file_max_size uint           Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800)
       --logtostderr                      log to standard error instead of files
       --one_output                       If true, only write logs to their native severity level (vs also writing to each lower severity level)