Add missing space in exception message

src/main/java/org/codehaus/mojo/versions/CompareDependenciesMojo.java

@@ -144,7 +144,7 @@ protected void update( ModifiedPomXMLEventReader pom )
     {
         if ( this.ignoreRemoteDependencies && this.ignoreRemoteDependencyManagement )
         {
-            throw new MojoFailureException( " ignoreRemoteDependencies and ignoreRemoteDependencyManagement"
+            throw new MojoFailureException( " ignoreRemoteDependencies and ignoreRemoteDependencyManagement "
                                                 + "are both set to true.  At least one of these needs to be false " );
         }