man: Document the db --diff option

This commit is contained in:
Colin Walters 2015-03-27 14:45:26 -04:00
parent e79c73de20
commit 21585d51c2

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@ -181,7 +181,14 @@ Boston, MA 02111-1307, USA.
</para>
<para>
<command>diff</command> to see how the packages are different between the trees in two commits.
<command>diff</command> to see how the packages are
different between the trees in two commits. The
<option>--format=diff</option> option uses
<literal>-<literal> for removed packages,
<literal>+</literal> for added packages, and finally
<literal>!</literal> for the old version of an updated
package, with a following <literal>=</literal> for the new
version.
</para>
<para>