routePUT: Fix unknown function call
routePUT: Fix unknown function call

The function name is `errorXMLResponse`, not `errorXmlResponse`.

Fixes: #151

truststamp/S3,truststamp/S3,tomateos/S3,truststamp/S3,scality/S3,truststamp/S3,truststamp/S3,tomateos/S3,truststamp/S3,lucisilv/Silviu_S3-Antidote,lucisilv/Silviu_S3-Antidote,tomateos/S3,lucisilv/Silviu_S3-Antidote,tomateos/S3,tomateos/S3,scality/S3,truststamp/S3,scality/S3,scality/S3,scality/S3,scality/S3,tomateos/S3,lucisilv/Silviu_S3-Antidote,scality/S3,lucisilv/Silviu_S3-Antidote,lucisilv/Silviu_S3-Antidote,scality/S3,lucisilv/Silviu_S3-Antidote,tomateos/S3,lucisilv/Silviu_S3-Antidote,truststamp/S3,tomateos/S3