Fix javadoc warnings in method parameters

core/src/main/java/hudson/Functions.java

@@ -1725,7 +1725,7 @@ public class Functions {
     /**
      * Returns human readable information about file size
      * 
-     * @param file size in bytes
+     * @param size file size in bytes
      * @return file size in appropriate unit
      */
     public static String humanReadableByteSize(long size){

core/src/main/java/hudson/model/WorkspaceListener.java

@@ -16,7 +16,7 @@ public abstract class WorkspaceListener implements ExtensionPoint {
 
     /**
      * Called before a build uses a workspace. IE, before any SCM checkout.
-     * @param r
+     * @param b
      * @param workspace
      * @param listener 
      */

core/src/main/java/jenkins/mvn/GlobalSettingsProvider.java

@@ -63,7 +63,7 @@ public abstract class GlobalSettingsProvider extends AbstractDescribableImpl<Glo
     /**
      * Convenience method handling all <code>null</code> checks. Provides the path on the (possible) remote settings file.
      * 
-     * @param settings
+     * @param provider
      *            the provider to be used
      * @param build
      *            the active build

core/src/main/java/jenkins/slaves/WorkspaceLocator.java

@@ -21,7 +21,7 @@ public abstract class WorkspaceLocator implements ExtensionPoint {
      * will determine the path to the workspace on that slave.
      * 
      * @param item The toplevel item
-     * @param slave The slave
+     * @param node The slave node
      * @return The absolute FilePath to the workspace on the slave. 
      * Will be created if it doesn't exist.
      *