Polish

Closes gh-4677

spring-boot-tools/spring-boot-configuration-metadata/src/main/java/org/springframework/boot/configurationmetadata/ConfigurationMetadataItem.java

@@ -17,7 +17,7 @@
 package org.springframework.boot.configurationmetadata;
 
 /**
- * An extension of {@link ConfigurationMetadataProperty} that provides the a reference to
+ * An extension of {@link ConfigurationMetadataProperty} that provides a reference to
  * its source.
  *
  * @author Stephane Nicoll

spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/Layouts.java

@@ -37,7 +37,7 @@ public final class Layouts {
 	}
 
 	/**
-	 * Return the a layout for the given source file.
+	 * Return a layout for the given source file.
 	 * @param file the source file
 	 * @return a {@link Layout}
 	 */