-reported (currently only supported with --format=json and --format=sexp)
-and the multipart/encrypted part will be replaced by the decrypted
-content.
+reported (currently only supported with --format=json and
+--format=sexp) and on successful decryption the multipart/encrypted
+part will be replaced by the decrypted content.
+
+Decryption expects a functioning \fBgpg-agent\fR(1) to provide any
+needed credentials. Without one, the decryption will fail.