Problem: build broken with Werror due to braced group
Problem: build broken with Werror due to braced group

Solution: given it's not necessary as no variables are written, remove
it.

zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre