DependencyCollector: infer dep for .lzh archives

Refs Homebrew/homebrew-games#383.

Library/Homebrew/dependency_collector.rb

@@ -165,6 +165,7 @@ class DependencyCollector
   def parse_url_spec(url, tags)
     case File.extname(url)
     when ".xz"  then Dependency.new("xz", tags)
+    when ".lha", ".lzh" then Dependency.new("lha", tags)
     when ".lz"  then Dependency.new("lzip", tags)
     when ".rar" then Dependency.new("unrar", tags)
     when ".7z"  then Dependency.new("p7zip", tags)