Too much documentation for -u.

man/rx.1/rx.1.xml

@@ -404,29 +404,20 @@
 				<term>&u.opt;</term>
 
 				<listitem>
-					<para>Allow ambiguities.
-						This means patterns with different ids may match the same text.
-						The default is to error for conflicts.</para>
+					<para>Allow ambiguities between patterns.
+						This means patterns with different ids may match the same text.</para>
 
-					<para>It's possible to have multiple patterns with the same id
-						(i.e. by being in the same file when using multi-file mode),
-						and these are not considered a conflict because they key
-						to the same id.</para>
-				</listitem>
-			</varlistentry>
-
-			<varlistentry>
-				<term>&u.opt;</term>
-
-				<listitem>
-					<para>Allow ambiguities between regexps,
-						such that multiple regexps may match the same text.
-						The default is to error for ambiguities,
+					<para>The default is to error for ambiguities,
 						requiring all regexps unioned to be non-overlapping.
 						Formally, the requirement is that they are disjoint languages.
 						Erroring for ambiguities applies after multiple regexps are joined,
 						either by union or by concatenation (&s.opt;).</para>
 
+					<para>It's possible to have multiple patterns with the same id
+						(i.e. by being in the same file when using multi-file mode),
+						and these are not considered a conflict because they key
+						to the same id.</para>
+
 					<para>&u.opt; is implied by &n.opt;.</para>
 				</listitem>
 			</varlistentry>