Remove trailing/leading spaces in Certificates (#5885)

Fixes:  #5632

cmd/certs.go

@@ -17,6 +17,7 @@
 package cmd
 
 import (
+	"bytes"
 	"crypto"
 	"crypto/ecdsa"
 	"crypto/tls"
@@ -38,6 +39,9 @@ func parsePublicCertFile(certFile string) (x509Certs []*x509.Certificate, err er
 		return nil, err
 	}
 
+	// Trimming leading and tailing white spaces.
+	data = bytes.TrimSpace(data)
+
 	// Parse all certs in the chain.
 	current := data
 	for len(current) > 0 {