Fix the two errors javadoc reports in pljava-api

... with --show-module-contents all --show-packages all
--show-types private --show-members private.

There are still lots of warnings reported and I have made no effort
to look at the docs generated with those settings. But it ought to be
possible to do so, with the first step being to eliminate the errors
that cause generation to fail.

Author: jcflack

pljava-api/src/main/java/org/postgresql/pljava/annotation/processing/DDRProcessorImpl.java

@@ -1749,7 +1749,7 @@ public String[] undeployStrings()
 	enum MethodShape
 	{
 		/**
-		 * Method has the shape {@code boolean foo(..., ResultSet)], which
+		 * Method has the shape {@code boolean foo(..., ResultSet)}, which
 		 * could be an ordinary method with an incoming record parameter and
 		 * boolean return, or a composite-returning method whose last
 		 * a writable ResultSet supplied by PL/Java for the return value.
@@ -5628,7 +5628,7 @@ void addMap(Class<?> k, String schema, String local)
 		 * already in the form of a {@code DBType}.
 		 *
 		 * @param k Class representing the Java type
-		 * @param DBType representing the SQL type to be used
+		 * @param type DBType representing the SQL type to be used
 		 */
 		void addMap(Class<?> k, DBType type)
 		{