This is just a little hack tool I made because I couldn't figure out an appropriate sed, awk, or perl script.

All this does is removes blank lines inside the import ( ) block of a Go file.

Follow this up with a call to goimports -w or goimports -w -local to put the blanks back in at the desired spots. Leverage your shell to do it to a bunch of files at once:

for f in **/*.go; do condenseimports "$f" && goimports -w "$f"; done

It is very hacky and generally "bad" code.