Add some more documentation about --checksum

diff --git a/docs/createrepo.8 b/docs/createrepo.8
index ba2f327d810923a5b2490f9fa574c460c88b68a7..ee236ca4e489487e2838edf267804afbeeaaf591 100644 (file)
--- a/docs/createrepo.8
+++ b/docs/createrepo.8
@@ -71,7 +71,9 @@ Generate sqlite databases for use with yum.
 Ignore symlinks of packages
 .IP "\fB\-s --checksum\fP"
 Choose the checksum type used in repomd.xml and for packages in the metadata.
-The default is now sha256, the older default was sha which is actually sha1.
+The default is now "sha256" (if python has hashlib). The older default was
+"sha", which is actually "sha1", however explicitly using "sha1" doesn't work
+on older (3.0.x) versions of yum, you need to specify "sha".
 .IP "\fB\-profile\fP"
 Output time based profiling information.
 .IP "\fB\--changelog-limit\fP CHANGELOG_LIMIT"