nit: error message

Author: slobodanadamovic

x-pack/plugin/security/cli/src/main/java/org/elasticsearch/xpack/security/cli/CertGenUtils.java

@@ -479,7 +479,7 @@ public static KeyUsage buildKeyUsage(Collection<String> keyUsages) {
 
         int usageBits = 0;
         for (String keyUsage : keyUsages) {
-            Integer keyUsageValue = KEY_USAGE_MAPPINGS.get(keyUsage);
+            Integer keyUsageValue = KEY_USAGE_MAPPINGS.get(keyUsage.trim());
             if (keyUsageValue == null) {
                 throw new IllegalArgumentException("Unknown keyUsage: " + keyUsage);
             }

x-pack/plugin/security/cli/src/main/java/org/elasticsearch/xpack/security/cli/HttpCertificateCommand.java

@@ -1050,9 +1050,10 @@ private static List<String> readKeyUsage(Terminal terminal, List<String> default
                 }
                 if (CertGenUtils.isValidKeyUsage(keyUsage) == false) {
                     terminal.println("Invalid key usage: " + keyUsage);
-                    terminal.println(
-                        "The key usage should be one of [" + CertGenUtils.KEY_USAGE_MAPPINGS.keySet().stream().sorted() + "] values"
-                    );
+                    terminal.println("The key usage should be one of the following values: ");
+                    for (String keyUsageName : CertGenUtils.KEY_USAGE_MAPPINGS.keySet()) {
+                        terminal.println(" - " + keyUsageName);
+                    }
                     return null;
                 }
                 resolvedKeyUsages.add(keyUsage);