[Console] Fixed tests about message exception when command is not available

Author: lyrixx

src/Symfony/Component/Console/Application.php

@@ -496,7 +496,12 @@ public function findNamespace($namespace)
                 }
 
                 if ($alternatives = $this->findAlternativeNamespace($part, $abbrevs)) {
-                    $message .= "\n\nDid you mean one of these?\n    ";
+                    if (1 == count($alternatives)) {
+                        $message .= "\n\nDid you mean this?\n    ";
+                    } else {
+                        $message .= "\n\nDid you mean one of these?\n    ";
+                    }
+
                     $message .= implode("\n    ", $alternatives);
                 }
 
@@ -571,7 +576,11 @@ public function find($name)
             $message = sprintf('Command "%s" is not defined.', $name);
 
             if ($alternatives = $this->findAlternativeCommands($searchName, $abbrevs)) {
-                $message .= "\n\nDid you mean one of these?\n    ";
+                if (1 == count($alternatives)) {
+                    $message .= "\n\nDid you mean this?\n    ";
+                } else {
+                    $message .= "\n\nDid you mean one of these?\n    ";
+                }
                 $message .= implode("\n    ", $alternatives);
             }