One use for @kbd{M-|} is to run @code{gpg} to see what keys are in
the buffer. For instance, if the buffer contains a GPG key, type
-@kbd{C-x h M-| uudecode @key{RET}} to feed the entire buffer contents
+@kbd{C-x h M-| gpg @key{RET}} to feed the entire buffer contents
to the @code{gpg} program. That program will ignore everything except
the encoded keys, and will output a list of the keys it contains.
@vindex comint-prompt-read-only
If you set @code{comint-prompt-read-only}, the prompts in the Comint
-buffer a read-only.
+buffer are read-only.
@vindex comint-input-ignoredups
The variable @code{comint-input-ignoredups} controls whether successive