[mdoc] change index subparameters and explain them

diff --git a/mcs/tools/mdoc/Mono.Documentation/index.cs b/mcs/tools/mdoc/Mono.Documentation/index.cs
index b9205ba4fe433f2be2008b8472ae51e4799e0966..c797e549d5c3da346ac197ae8732121189ac3786 100644 (file)
--- a/mcs/tools/mdoc/Mono.Documentation/index.cs
+++ b/mcs/tools/mdoc/Mono.Documentation/index.cs
@@ -45,7 +45,7 @@ namespace Mono.Documentation {
 
                        var extra = Parse (options, args, "index", 
                                           "[OPTIONS]+ ACTION",
-                                          "Create tree indexes depending on ACTION. Possible values are \"index\" or \"search\"");
+                                          "Create Monodoc indexes depending on ACTION. Possible values are \"tree\" or \"search\" for, respectively, mdoc tree and lucene search");
                        if (extra == null)
                                return;
 
@@ -53,7 +53,7 @@ namespace Mono.Documentation {
 
                        foreach (var action in extra) {
                                switch (action) {
-                               case "index":
+                               case "tree":
                                        RootTree.MakeIndex (root);
                                        break;
                                case "search":