buglet in --passphrase-fd option in 1.0.6

[Werner Koch]

On Mon, 4 Mar 2002 10:03:52 -0600, William Harold Newman said:

> echo ppp | gpg --symmetric --passphrase-fd 0 foo
> gpg: Warning: using insecure memory!
> Reading passphrase from file descriptor 0 ...^H^H^H

add --batch 


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