use String#clear for short-lived buffers we create

This should reduce memory pressure slightly as we can
have finer-grained control of memory usage for buffers which
can be several kilobytes large.

It is not safe to do this for output buffers we get from the
application, as they may reuse that memory themselves.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/yahns/tee_input.rb b/lib/yahns/tee_input.rb
index 55b1604..93ec148 100644
--- a/lib/yahns/tee_input.rb
+++ b/lib/yahns/tee_input.rb
@@ -100,6 +100,7 @@ class Yahns::TeeInput < Yahns::StreamInput # :nodoc:
     junk = ''.dup
     rsize = __rsize
     nil while read(rsize, junk)
+    junk.clear
   end
 
   def tee(buffer)