Revert "remove quoting around $(..) its protected by all shells without quoting"

This reverts commit 58df4e47279ca5a09e594fd766a1781293beb4fe.
A script to format Go code in acme
Find all modules script from Linux Kernel in a nutshell book
Remove possible bashism while creating local variables

when creating and assigning to variable using `local` keyword dash
behaves weirdly avoid this and declare local variables first and later
use them in assignment.