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-rw-r--r--lib/fileutils.rb17
1 files changed, 7 insertions, 10 deletions
diff --git a/lib/fileutils.rb b/lib/fileutils.rb
index 67cc79f02f..3d74eac385 100644
--- a/lib/fileutils.rb
+++ b/lib/fileutils.rb
@@ -894,16 +894,13 @@ public
#
def compare_stream(a, b)
bsize = fu_stream_blksize(a, b)
- sa = sb = nil
- while sa == sb
- sa = a.read(bsize)
- sb = b.read(bsize)
- unless sa and sb
- if sa.nil? and sb.nil?
- return true
- end
- end
- end
+ sa = ""
+ sb = ""
+ begin
+ a.read(bsize, sa)
+ b.read(bsize, sb)
+ return true if sa.empty? && sb.empty?
+ end while sa == sb
false
end