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-rw-r--r--man/ruby.12
1 files changed, 1 insertions, 1 deletions
diff --git a/man/ruby.1 b/man/ruby.1
index 779167ac3e..6c9f5fb0d1 100644
--- a/man/ruby.1
+++ b/man/ruby.1
@@ -388,7 +388,7 @@ before executing script.
.Pp
.It Fl y
.It Fl -yydebug
-DO NOT USE.
+This option is not guaranteed to be compatible.
.Pp
Turns on compiler debug mode. Ruby will print a bunch of internal
state messages during compilation. Only specify this switch you are going to