Correct methoddesc environments.

Doc/lib/libdocxmlrpc.tex

@@ -54,7 +54,7 @@ will be used inside the HTML "title" element.
 
 \end{methoddesc}
 
-\begin{set_server_name}{server_name}
+\begin{methoddesc}{set_server_name}{server_name}
 
 Set the name used in the generated HTML documentation. This name will
 appear at the top of the generated documentation inside a "h1"
@@ -63,7 +63,7 @@ element.
 \end{methoddesc}
 
 
-\begin{set_server_documentation}{server_documentation}
+\begin{methoddesc}{set_server_documentation}{server_documentation}
 
 Set the description used in the generated HTML documentation. This
 description will appear as a paragraph, below the server name, in the