no need to pass 'rb' as File.open flags

IO#read always returns a binary string buffer if passed an
explicit length to read, and we always do that.  This is
a small garbage reduction.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/rainbows/response/body.rb b/lib/rainbows/response/body.rb
index e399df7..0a2bb5d 100644
--- a/lib/rainbows/response/body.rb
+++ b/lib/rainbows/response/body.rb
@@ -41,7 +41,7 @@ module Rainbows::Response::Body # :nodoc:
       # try to take advantage of Rainbows::DevFdResponse, calling File.open
       # is a last resort
       path = body.to_path
-      path =~ %r{\A/dev/fd/(\d+)\z} ? IO.new($1.to_i) : File.open(path, 'rb')
+      path =~ %r{\A/dev/fd/(\d+)\z} ? IO.new($1.to_i) : File.open(path)
     end
   end