[CT] Split benchmarkArgs around one or more consecutive white spaces

ct/go/worker_scripts/fix_archives/main.go

Index: ct/go/worker_scripts/fix_archives/main.go
diff --git a/ct/go/worker_scripts/fix_archives/main.go b/ct/go/worker_scripts/fix_archives/main.go
index 147936edbf8d3142677e703b0bfe649759344041..86145f462d4e73be8b0e80005d0e138163614383 100644
--- a/ct/go/worker_scripts/fix_archives/main.go
+++ b/ct/go/worker_scripts/fix_archives/main.go
@@ -163,7 +163,7 @@ func main() {
 			args = append(args, "--browser=exact", "--browser-executable="+chromiumBinary)
 			// Split benchmark args if not empty and append to args.
 			if *benchmarkArgs != "" {
-				for _, benchmarkArg := range strings.Split(*benchmarkArgs, " ") {
+				for _, benchmarkArg := range strings.Fields(*benchmarkArgs) {
 					args = append(args, benchmarkArg)
 				}
 			}