From the command-line 

nzigovt -c ../perl-conf make-req
https://www.mts-logon.i.govt.nz/mts2/controller/SSO?SAMLRequest=fVJdb
9swDPwrht5j2Z7TDyIOECTYECBth3rYw95UmU4MyJIn0nXaXz%2FZTQsD2%2FomkDwe70
4rUq3pYNPzyT7i7x6Jo3NrLMHUKETvLThFDYFVLRKwhnJzd4AsTqDzjp12RswgnyMUEXp
unBXR5v25dZb6Fn2J%2FrnRuLcVnguRiOir8xqnywrBvkcR7XeFwCTF29v8%2BirJM1Vl
S53fLOssr5%2BucvW0zNQXEf1ET2FxIQJlABH1YSuxshxKSZoukmyR5j%2ByFJJrWCa%2
FRLQLuhureEKdmDsCKYdhiFumhXFHZ%2BMmPrpnju2rDLVMamfZO2PQy7J8EOvVKB4mLr
%2Beb0CDetxLH3iPyrRSdV26knPU6i2L%2B%2BDafvfdmUa%2FRBtj3LANCMZC1MoQTr6
0ij83eqw01aKeRqEbDSFGyyKS7zyXuLGaLA4pMJ75omNe2pqQ2iPW65HPvhoYdUCjGYgr
AjWOQoWdcS9tYIBvh3IWuAY94sN5BzeU7NEe%2BXTR%2FU%2BWt95%2Fz5N%2Ff9j1Hw%
3D%3D&SigAlg=http%3A%2F%2Fwww.w3.org%2F2000%2F09%2Fxmldsig%23rsa-sha1
&Signature=AdSaFnWgFaYqcIlp%2FMIMgc25yu5cYbvbG%2FWTEhwrGP7iZ9ep%2FuOJ
sPAOQaZF%2FfyONIEghUh200ktSjTlQOb5dGRDekxYmPoPr4EYf%2B0gyYKRL%2Fj%2F7
V%2FnfWPMKLPS63i5y%2FLk0iKR7u9BTWgyj9up8XaZlzEY0gTcYPRrae5DnyA%3D