Rakefile in patternmatching-0.2.4 vs Rakefile in patternmatching-0.2.5

@@ -76,10 +76,10 @@
   p.email = EMAIL
   p.summary = DESCRIPTION
   p.url = HOMEPATH
   p.rubyforge_name = RUBYFORGE_PROJECT if RUBYFORGE_PROJECT
   p.test_globs = ["test/**/test_*.rb"]
-  p.clean_globs = CLEAN  #An array of file patterns to delete on clean.
+  p.clean_globs |= CLEAN  #An array of file patterns to delete on clean.
   
   # == Optional
   p.changes = p.paragraphs_of("History.txt", 0..1).join("\n\n")
   #p.extra_deps = []     # An array of rubygem dependencies [name, version], e.g. [ ['active_support', '>= 1.3.1'] ]
   #p.spec_extras = {}    # A hash of extra values to set in the gemspec.