Do not hard-code the path to gpg.
There's no need to do this as perl will use execvp() which searches PATH. Currently, the code uses "/usr/bin/gpg" for some operations but simply "gpg" for signing.
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There's no need to do this as perl will use execvp() which searches PATH. Currently, the code uses "/usr/bin/gpg" for some operations but simply "gpg" for signing.