+ ridden using external commands.
+</pre>
+
+<h3> OPTION SYNTAX</h3>
+<pre>
+ All options accepting an argument can be used with '=' or ':' as a sep‐
+ arator. For the cases where it's not ambiguous (in particular excluding
+ boolean options), a space can also be used. The following are all
+ equivalent:
+
+ notmuch --config=alt-config config get user.name
+ notmuch --config:alt-config config get user.name
+ notmuch --config alt-config config get user.name