I'd like to have a newline character in an environment variable. I've tried
SetEnv DI_collection_clients_list "client1
client2"
which results in
Invalid command 'client2"', perhaps misspelled or defined by a module not included in the server configuration
when restarting Apache.
I've also tried
SetEnv DI_collection_clients_list "client1\nclient2"
which results in the variable of course having a \n
instead of a newline.