bin/lscript in liquidscript-0.7.1 vs bin/lscript in liquidscript-0.7.2

@@ -8,16 +8,27 @@
 end
 
 infile = ARGV.shift
 outfile = ARGV.shift || infile.gsub(/\.liq\Z/, ".js")
 
-File.open(infile, "r") do |f|
+if infile == '-'
+  infile = $stdin
+else
+  infile = File.open(infile, "r")
+end
 
-  begin
-    out = Liquidscript.compile(f.read)
-    File.open(outfile, "w") { |o| o.write out }
-  rescue StandardError => e
+if outfile == '-'
+  outfile = $stdout
+else
+  outfile = File.open(outfile, "w")
+end
+
+begin
+  out = Liquidscript.compile(infile.read)
+  outfile.write(out)
+rescue StandardError => e
     $stderr.puts "ERROR: #{e.class}: #{e.message}"
     $stderr.puts e.backtrace[0..5].map { |s| "\t#{s.gsub(/^.*?\/lib\/liquidscript\//, "")}" }.join("\n")
-  end
-
+ensure
+  [infile, outfile].each(&:close)
 end
+