configure.ac: add whitespace separators to "((" groupings to mollify shellcheck SC1105 "Shells disambiguate (( differently or not at all. For subshell, add spaces around ( . For ((, fix parsing errors."

This commit is contained in:
Daniel Pouzzner
2022-05-19 18:19:11 -05:00
parent 6984cf83b2
commit efc8d36aa5