sed -i 's/ns4/saml/g' $(git grep -l 'xmlns:ns4="urn:oasis:names:tc:SAML:2.0:assertion"')

Author: spaceone

tests/ecp_soap.xml

@@ -2,7 +2,7 @@
               xmlns:ns1="urn:liberty:paos:2003-08"
               xmlns:ns2="urn:oasis:names:tc:SAML:2.0:profiles:SSO:ecp"
               xmlns:ns3="urn:oasis:names:tc:SAML:2.0:protocol"
-              xmlns:ns4="urn:oasis:names:tc:SAML:2.0:assertion">
+              xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion">
     <ns0:Header>
         <ns1:Request responseConsumerURL="https://sp.example.org/PAOSConsumer"
                      service="urn:oasis:names:tc:SAML:2.0:profiles:SSO:ecp"
@@ -16,7 +16,7 @@
                               Name="Example identity provider"
                               ProviderID="https://idp.example.org/entity"/>
             </ns3:IDPList>
-            <ns4:Issuer>https://sp.example.org/entity</ns4:Issuer>
+            <saml:Issuer>https://sp.example.org/entity</saml:Issuer>
         </ns2:Request>
         <ns2:RelayState ns0:actor="http://schemas.xmlsoap.org/soap/actor/next"
                         ns0:mustUnderstand="1">ABCDEFGHI01234567