[PATCH 1/8] source/sox: correctly extend xs for try_to_fail_harder

[Eric Wong]

Singleton methods tend to be bad like this.
TODO: write tests for this.
---
 lib/dtas/source/sox.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/dtas/source/sox.rb b/lib/dtas/source/sox.rb
index 0001689..e26f54b 100644
--- a/lib/dtas/source/sox.rb
+++ b/lib/dtas/source/sox.rb
@@ -11,6 +11,7 @@ class DTAS::Source::Sox # :nodoc:
 
   include DTAS::Source::File
   include DTAS::XS
+  extend DTAS::XS
 
   SOX_DEFAULTS = COMMAND_DEFAULTS.merge(
     "command" => 'exec sox "$INFILE" $SOXFMT - $TRIMFX $RGFX',
-- 
1.8.4