get the terminology consistent.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@3862 71c3de6d-444a-0410-be80-ed276b4c234a

war/resources/help/matrix/jdk.html

@@ -2,7 +2,7 @@
   Specify the JDK(s) with which builds are performed. If none is selected,
   the default JDK is used (no explicit <tt>JAVA_HOME</tt>, and <tt>java</tt> command
   is assumed to be in <tt>PATH</tt>.) If multiple JDKs are selected,
-  the build matrix will includes all the configurations.
+  the configuration matrix will includes all the specified JDKs.
   <br>
   Selecting multiple values is typically useful when this job is running tests,
   and you need to run tests on multiple different versions of JDKs.

war/resources/help/matrix/label.html

@@ -15,7 +15,7 @@
       This is useful when the build is required to run on a specific computer,
       or a subset of computers. For example, maybe your build requiers MacOS X.
     <li>
-      If multiple values are selected, the build matrix will be expanded to include
+      If multiple values are selected, the configuration matrix will be expanded to include
       them all, and builds will be performed on all the selected nodes/labels.
       This is useful for example when you'd like to run tests on Windows, Linux,
       and Solaris.