Under my version of msysgit, I can't use process substitution.
cat <(echo 'foo')
sh.exe": cannot make pipe for process substitution: Function not implemented
If I upgraded to the latest version of msysgit, would its version of msys / mingw be able to handle process substitution?
My current version of msysgit is 1.7.0.2.msysgit.0 and GNU bash is version 3.1.0(3)-release (i686-pc-msys).
Afraid this is still a no as of 1.7.6.msysgit.0 which has Bash 3.1.0(1).
With Git 2.5.0 also the Bash is updated:
So, now your command works fine: