Turn the copyable text into a composer require cmd, fixes #499, fixes #composer/composer#3367

src/Packagist/WebBundle/Resources/views/Web/versionDetails.html.twig

@@ -1,6 +1,6 @@
 {% import "PackagistWebBundle::macros.html.twig" as packagist %}
 
-<p class="requireme">require: <input type="text" readonly="readonly" value="{{ "\"#{version.package.vendor}/#{version.package.packageName}\": \"#{version.hasVersionAlias() ? version.requireVersionAlias : version.requireVersion}\"" }}" /></p>
+<p class="requireme"><input type="text" readonly="readonly" value="composer require {{ "'#{version.package.vendor}/#{version.package.packageName}:#{version.hasVersionAlias() ? version.requireVersionAlias : version.requireVersion}'" }}" /></p>
 
 <h2 class="authors">Author{{ version.authors|length > 1 ? 's' : '' }}</h2>
 <ul>