tools: normalize nfdc exit codes
refs #3749
Change-Id: I0c81dff095c170390f62de82badc0cca7b53392d
diff --git a/docs/manpages/nfd-status.rst b/docs/manpages/nfd-status.rst
index f22f326..a7ec024 100644
--- a/docs/manpages/nfd-status.rst
+++ b/docs/manpages/nfd-status.rst
@@ -47,6 +47,15 @@
If -x is provided, other options(-v, -c, etc.) are ignored, and all information is printed in XML format.
+Exit Codes
+----------
+
+0: Success
+
+1: An unspecified error occurred
+
+2: Malformed command line
+
Examples
--------