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-rw-r--r--lib/rdoc/rdoc.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/rdoc/rdoc.rb b/lib/rdoc/rdoc.rb
index c60e0176090..f356c368ffa 100644
--- a/lib/rdoc/rdoc.rb
+++ b/lib/rdoc/rdoc.rb
@@ -430,7 +430,7 @@ The internal error was:
files.reject do |file|
file =~ /\.(?:class|eps|erb|scpt\.txt|svg|ttf|yml)$/i or
(file =~ /tags$/i and
- open(file, 'rb') { |io|
+ File.open(file, 'rb') { |io|
io.read(100) =~ /\A(\f\n[^,]+,\d+$|!_TAG_)/
})
end