go.mod alias support

[c1982]

Hi @alihanyalcin ;

In some projects, they can change the go.mod file name with the -modfile parameter.

Just like this:
-modfile=local.mod

However this line will not be able to capture go.mod.

gomup/gomup.go

Line 115 in 8539e74

if info.Name() == gomod {

Not: I wrote to remember ✋