Revert "Moved fatal error message to a separate function to hide the ugliness"

This reverts commit 319aed2ebf1858a29f0c769952b50f51eca42957.
Revert "Better error messages with a here-document"

This reverts commit ad140cec08e1768f386538711c5cc92ea1101140.

Conflicts:

	install
Revert "eliminated bifurcation in the prompt_script variable"

This reverts commit e27e0c45a97bf2d25d82e5b5c25249212b20ca1d.

Conflicts:

	install
Merge remote-tracking branch 'origin/make-install' into make-install

Conflicts:
	install