Updated description for SSL_KEYSTORE_ALIAS_CONFIG

Author: rahulnirgude

clients/src/main/java/org/apache/kafka/common/config/SslConfigs.java

@@ -90,7 +90,7 @@ public class SslConfigs {
         + "This is optional for client and can be used for two-way authentication for client.";
 
     public static final String SSL_KEYSTORE_ALIAS_CONFIG = "ssl.keystore.alias";
-    public static final String SSL_KEYSTORE_ALIAS_DOC = "This is config is used to pick named alias from the keystore to build the SSL engine and authenticate the client with broker. " +
+    public static final String SSL_KEYSTORE_ALIAS_DOC = "This config is used to pick named alias from the keystore to build the SSL engine and authenticate the client with broker. " +
             "This is an optional config and used only when you have multiple keys in the keystore and you need to control which key needs to be presented to server.";