ndnsec: add a short description to the `--help` output of each command
Change-Id: Ifcc217bb096f1f27bceb609f5f117cf8b1d0c73d
diff --git a/tools/ndnsec/cert-gen.cpp b/tools/ndnsec/cert-gen.cpp
index e7c49ad..ae60efd 100644
--- a/tools/ndnsec/cert-gen.cpp
+++ b/tools/ndnsec/cert-gen.cpp
@@ -46,6 +46,8 @@
"Usage: ndnsec cert-gen [-h] [-S TIMESTAMP] [-E TIMESTAMP] [-I INFO]...\n"
" [-s IDENTITY] [-i ISSUER] [-r] FILE\n"
"\n"
+ "Issue a certificate from a certificate signing request.\n"
+ "\n"
"Options");
description.add_options()
("help,h", "produce help message")