fix: [myc-install] make ``curl`` detect ``404`` errors and follow redirection if any

bin/myc-install

@@ -85,7 +85,7 @@ export PGHOST PGUSER
 EOF
 
 if ! [ -s /etc/ssh/vm_git_myceliandre_access_id_rsa ]; then
-    curl https://docker.0k.io/get/vm_git_myceliandre_access_id_rsa > /etc/ssh/vm_git_myceliandre_access_id_rsa || {
+    curl -L --fail https://docker.0k.io/get/vm_git_myceliandre_access_id_rsa > /etc/ssh/vm_git_myceliandre_access_id_rsa || {
         echo "Fatal: Could not retrieve http://docker.0k.io/get/vm_git_myceliandre_access_id_rsa ..." >&2
         rm -f /etc/ssh/vm_git_myceliandre_access_id_rsa
         exit 1