Fix: Prevent nil errors in setupLog.Error to ensure proper logging

Closes; operator-framework#1566
Closes: operator-framework#1556

Author: camilamacedo86

catalogd/cmd/catalogd/main.go

@@ -145,12 +145,12 @@ func main() {
 	}
 
 	if (certFile != "" && keyFile == "") || (certFile == "" && keyFile != "") {
-		setupLog.Error(nil, "unable to configure TLS certificates: tls-cert and tls-key flags must be used together")
+		setupLog.Error(fmt.Errorf("unable to configure TLS certificates"), "tls-cert and tls-key flags must be used together")
 		os.Exit(1)
 	}
 
 	if metricsAddr != "" && certFile == "" && keyFile == "" {
-		setupLog.Error(nil, "metrics-bind-address requires tls-cert and tls-key flags to be set")
+		setupLog.Error(fmt.Errorf("unable to configure metrics-bind-address"), "metrics-bind-address requires tls-cert and tls-key flags to be set")
 		os.Exit(1)
 	}
 

cmd/operator-controller/main.go

@@ -132,12 +132,12 @@ func main() {
 	}
 
 	if (certFile != "" && keyFile == "") || (certFile == "" && keyFile != "") {
-		setupLog.Error(nil, "unable to configure TLS certificates: tls-cert and tls-key flags must be used together")
+		setupLog.Error(fmt.Errorf("unable to configure TLS certificates"), "tls-cert and tls-key flags must be used together")
 		os.Exit(1)
 	}
 
 	if metricsAddr != "" && certFile == "" && keyFile == "" {
-		setupLog.Error(nil, "metrics-bind-address requires tls-cert and tls-key flags to be set")
+		setupLog.Error(fmt.Errorf("unable to configure metrics-bind-address"), "metrics-bind-address requires tls-cert and tls-key flags to be set")
 		os.Exit(1)
 	}