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-rw-r--r--lib/README1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/README b/lib/README
index 2a3e3083ca6..19d6309166b 100644
--- a/lib/README
+++ b/lib/README
@@ -59,6 +59,7 @@ profiler.rb ruby profiler module
pstore.rb persistent object strage using marshal
racc/parser.rb racc (Ruby yACC) runtime
rational.rb rational number support
+rdoc source-code documentation tool
readbytes.rb define IO#readbytes
resolv-replace.rb replace Socket DNS by resolve.rb
resolv.rb DNS resolver in Ruby