Commented on the use of -DHASHING

diff --git a/m4/nsc.m4 b/m4/nsc.m4
index 224512d755f00645ce16d548808caadeb4af56ae..ad9ed2493a642867c1c380eaca6d93f5a2820906 100644 (file)
--- a/m4/nsc.m4
+++ b/m4/nsc.m4
@@ -3,6 +3,7 @@ dnl ### NSC -- Zone File Generator
 dnl ### (c) 1997--2011 Martin Mares <mj@ucw.cz>
 dnl ###
 dnl ### Usage: m4 -DVERS=path-to-version-file nsc.m4 domain-source-files >zone-file
+dnl ###    or: m4 -DHASHING nsc.m4 domain-source-files | md5sum
 dnl ###
 include(m4/dnslib.m4)