Make any rake gettext:compile errors more obvious

From @yuanchenlu at #854 (comment 316419200):

Update: turns out the error was not due to this node package but due to bundle exec rake gettext:compile. It happens that bundle exec rake gettext:compile executes right after installing node packages... and having the warning messages causing confusion. The root error was that my mac installed openssl@1.1 which is not compatible with some packages that GDK requires. See https://github.com/kelaberetiv/TagUI/issues/86 to fix openssl version issue. I'm closing this issue now