sh(1) is not make(1), use newlines inside double quotes

sh(1) is not make(1), use newlines inside double quotes

sh(1) happily accepts newlines inside double quotes just like in scripts:

        $ sh -c "echo foo
	echo bar"
	foo
	bar

So no need to squash things into a single line as usually done inside make
targets where each makefile line is considered its own script unless
continued with trailing backslashes.

OK millert