[PATCH 2/3] more idiomatic comparisons with constants

[Eric Wong <e@80x24.org>]

These generates smaller bytecode than explicitly
comparing to a constant value.
---
 lib/mogilefs/bigfile/filter.rb  | 2 +-
 lib/mogilefs/new_file/stream.rb | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/mogilefs/bigfile/filter.rb b/lib/mogilefs/bigfile/filter.rb
index e95a47e..d831312 100644
--- a/lib/mogilefs/bigfile/filter.rb
+++ b/lib/mogilefs/bigfile/filter.rb
@@ -33,7 +33,7 @@ class MogileFS::Bigfile::Filter
   end
 
   def write(buf)
-    if nil == @zi
+    unless @zi
       if @info[:compressed] &&
          INFLATABLE_TYPES.include?(@info[:type]) &&
          buf.bytesize >= 2 &&
diff --git a/lib/mogilefs/new_file/stream.rb b/lib/mogilefs/new_file/stream.rb
index a71be74..71ac591 100644
--- a/lib/mogilefs/new_file/stream.rb
+++ b/lib/mogilefs/new_file/stream.rb
@@ -42,7 +42,7 @@ class MogileFS::NewFile::Stream
 
   def write(buf)
     buf = String buf
-    return 0 if 0 == buf.size
+    return 0 if buf.empty?
     rv = @writer.write(buf)
     @bytes_uploaded += rv
     rv
-- 
EW