Small help text fixes, to make it more consistent and accurate.

Temporarily remove -l option from 'expr' command (at Sean's request).

llvm-svn: 113298
diff --git a/lldb/source/Commands/CommandObjectExpression.h b/lldb/source/Commands/CommandObjectExpression.h
index a466167..f480563 100644
--- a/lldb/source/Commands/CommandObjectExpression.h
+++ b/lldb/source/Commands/CommandObjectExpression.h
@@ -46,7 +46,7 @@
         // Options table: Required for subclasses of Options.
 
         static lldb::OptionDefinition g_option_table[];
-        Language  language;
+        //Language  language;
         lldb::Encoding  encoding;
         lldb::Format    format;
         bool        debug;