add rsa-pkcs8 PBE-SHA1-3DES test-file

tests/rsa-pkcs8/README.txt

@@ -8,6 +8,7 @@ openssl pkcs8 -topk8 -inform PEM -outform DER -passout pass:secret -in ../test.k
 openssl pkcs8 -topk8 -inform PEM -outform DER -passout pass:secret -in ../test.key -v1 PBE-SHA1-RC2-64 -out key_pkcs8_pbe_sha1_rc2_64.der
 openssl pkcs8 -topk8 -inform PEM -outform DER -passout pass:secret -in ../test.key -v1 PBE-MD5-RC2-64  -out key_pkcs8_pbe_md5_rc2_64.der
 openssl pkcs8 -topk8 -inform PEM -outform DER -passout pass:secret -in ../test.key -v1 PBE-SHA1-DES    -out key_pkcs8_pbe_sha1_des.der
+openssl pkcs8 -topk8 -inform PEM -outform DER -passout pass:secret -in ../test.key -v1 PBE-SHA1-3DES   -out key_pkcs8_pbe_sha1_3des.der
 
 # password protected - PBES2
 openssl pkcs8 -topk8 -inform PEM -outform DER -passout pass:secret -in ../test.key -v2 rc2  -out key_pkcs8_pbkdf2_rc2_cbc.der