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-rw-r--r--lib/cgi-lib.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/cgi-lib.rb b/lib/cgi-lib.rb
index 362d13f8d06..1a6d16a6da8 100644
--- a/lib/cgi-lib.rb
+++ b/lib/cgi-lib.rb
@@ -81,7 +81,7 @@ class CGI < SimpleDelegator
end
def CGI.error
- m = $!.dup
+ m = $!.to_s.dup
m.gsub!(/&/, '&amp;')
m.gsub!(/</, '&lt;')
m.gsub!(/>/, '&gt;')