tools: deprecate old ndnsec command aliases

These are: ndnsec-certgen, ndnsec-dump-certificate,
ndnsec-install-cert, ndnsec-keygen, ndnsec-ls-identity

Change-Id: I0fbc65d2a08f8e7812fd7e62cf6618ffe62671de
diff --git a/docs/manpages/ndnsec-cert-gen.rst b/docs/manpages/ndnsec-cert-gen.rst
index b3c2724..b433ef8 100644
--- a/docs/manpages/ndnsec-cert-gen.rst
+++ b/docs/manpages/ndnsec-cert-gen.rst
@@ -74,7 +74,7 @@
     YXL9AgIHRm9vIEJhchdHMEUCIQDPT9Hq1kvkE0r9W1aYSBVTnHlTEzgtz+v1DwkC
     ug/vLAIgY3xJITCwf55sqey33q5GIQSk1TRCkNNl58ojvPs5sNU=
 
-    $ ndnsec-dump-certificate -p -f signed.cert
+    $ ndnsec-cert-dump -p -f signed.cert
     Certificate name:
       /example/KEY/%E4%14%99%7F%28%96%82%EB/Universe/%FD%00%00%01q%D1%02N%82
     Validity:
diff --git a/docs/manpages/ndnsec-cert-install.rst b/docs/manpages/ndnsec-cert-install.rst
index dae8ee7..f98b5d4 100644
--- a/docs/manpages/ndnsec-cert-install.rst
+++ b/docs/manpages/ndnsec-cert-install.rst
@@ -43,7 +43,7 @@
 
 Install a certificate via HTTP and set it as the default certificate::
 
-    $ ndnsec-install-cert "http://ndncert.domain.com/cert/get/my-certificate.ndncert"
+    $ ndnsec-cert-install "http://ndncert.domain.com/cert/get/my-certificate.ndncert"
 
 Install a certificate but do not change any default settings::