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-rw-r--r--lib/optparse.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/optparse.rb b/lib/optparse.rb
index 6bfb91800b..84b2066f27 100644
--- a/lib/optparse.rb
+++ b/lib/optparse.rb
@@ -1259,7 +1259,7 @@ class OptionParser
end
begin
opt, cb, val = sw.parse(rest, argv) {|*exc| raise(*exc)}
- val = cb.call(*val) if cb
+ val = cb.call(val) if cb
setter.call(sw.switch_name, val) if setter
rescue ParseError
raise $!.set_option(arg, rest)