[3508] D2 command line help improved.

diff --git a/src/bin/d2/d_controller.cc b/src/bin/d2/d_controller.cc
index 6c0b745b53370a374dfb67a43e5c77d82eca8eac..6e409c9c72a921670cfecc6d2b17f580ccebc890 100644 (file)
--- a/src/bin/d2/d_controller.cc
+++ b/src/bin/d2/d_controller.cc
@@ -422,7 +422,10 @@ DControllerBase::usage(const std::string & text)
     std::cerr << "Usage: " << bin_name_ <<  std::endl
               << "  -c <config file name> : mandatory,"
               <<   " specifies name of configuration file " << std::endl
-              << "  -v: optional, verbose output " << std::endl;
+              << "  -d: optional, verbose output " << std::endl
+              << "  -v: print version number and exit" << std::endl
+              << "  -V: print extended version information and exit"
+              << std::endl;
 
     // add any derivation specific usage
     std::cerr << getUsageText() << std::endl;