Strip trailing slashes in resource directory names

[io7m]

The following class will work:

public final class ARAudioGraphStrings
  extends JXTAbstractStrings implements ARAudioGraphStringsType
{
  public ARAudioGraphStrings(
    final Locale locale)
    throws IOException
  {
    super(
      locale,
      ARAudioGraphStrings.class,
      "/com/io7m/aradine/graph/vanilla",
      "AudioGraph"
    );
  }
}

The following class won't work:

public final class ARAudioGraphStrings
  extends JXTAbstractStrings implements ARAudioGraphStringsType
{
  public ARAudioGraphStrings(
    final Locale locale)
    throws IOException
  {
    super(
      locale,
      ARAudioGraphStrings.class,
      "/com/io7m/aradine/graph/vanilla/",
      "AudioGraph"
    );
  }
}

The error:

java.io.FileNotFoundException: 
Could not locate an appropriate resource file.
  Locale: en
  Class: class com.io7m.aradine.graph.vanilla.ARAudioGraphStrings
  Base: /com/io7m/aradine/graph/vanilla/
  Name: AudioGraph
  Tried resources: 
    /com/io7m/aradine/graph/vanilla//AudioGraph_en__.xml
    /com/io7m/aradine/graph/vanilla//AudioGraph_en_.xml
    /com/io7m/aradine/graph/vanilla//AudioGraph_en.xml
    /com/io7m/aradine/graph/vanilla//AudioGraph.xml