Remove output argument.

matlab/cli/search.m

@@ -1,4 +1,4 @@
-function str = search(variablename)
+function search(variablename)
 
 % Prints equations where the variable appears in.
 %
@@ -90,9 +90,6 @@ for it = 1:length(M_.mapping.(variablename).eqidx)
             withexpansion = false;
         end
     end
-    if nargout
-        str = sprintf('%s = %s;\n', model{M_.mapping.(variablename).eqidx(it)}.lhs, rhs);
-    end
     skipline()
     fprintf('%s = %s;\n', model{id}.lhs, rhs);
 end