try to reduce code smell

main.go

@@ -134,7 +134,7 @@ func checkCertificates(dnsname string, certificate string, fullchain string, ca
 	fullchainBlock, _ := pem.Decode([]byte(certFullchainPEM))
 	if fullchainBlock == nil {
 		if fail == true {
-			fmt.Printf("%v failed to parse certificate PEM\n", errMsg)
+			fmt.Printf("%v failed to parse full chain PEM\n", errMsg)
 			appExit(255)
 		} else {
 			return false
@@ -143,7 +143,7 @@ func checkCertificates(dnsname string, certificate string, fullchain string, ca
 	fullchainCert, fullchainErr := x509.ParseCertificate(fullchainBlock.Bytes)
 	if fullchainErr != nil {
 		if fail == true {
-			fmt.Printf("%v failed to parse certificate %v\n", errMsg, fullchainErr)
+			fmt.Printf("%v failed to parse full chain %v\n", errMsg, fullchainErr)
 			appExit(255)
 		} else {
 			return false
@@ -167,7 +167,7 @@ func checkCertificates(dnsname string, certificate string, fullchain string, ca
 	}
 	if _, fullchainErr := fullchainCert.Verify(opts); fullchainErr != nil {
 		if fail == true {
-			fmt.Printf("%v failed to parse certificate %v\n", errMsg, err.Error())
+			fmt.Printf("%v failed to parse full chain %v\n", errMsg, err.Error())
 		} else {
 			return false
 		}