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"
+.IP "\fB\--profile\fP"
Output time based profiling information.
.IP "\fB\--changelog-limit\fP CHANGELOG_LIMIT"
Only import the last N changelog entries, from each rpm, into the metadata