Linux/macOS fix

[rkarlsba]

Linux/macOS writes version to stderr, not stdout

[rkarlsba]

Linux/macOS writes version to stderr, not stdout, so the code needs to be changed a wee bit

[jmerc77]

some curiosities:

• am i right that the replace line is removed due to redundancy?
• did the .err version fail on windows (is it not on both err and out?) if not the if is unnecessary.
• what about win64? will it fail there?
• wondering if there are openSCAD versions the use out on linux. something to consider. though hard to test.

[jmerc77]

did the .err version fail on windows (is it not on both err and out?) if not the if is unnecessary.

some say there's no such thing as a "stupid question." I disagree. if err and out were used it would print twice. which is undesirable behavior thus, answering the "stupid question" above from point 2. but at least I caught it before someone pointed it out which is better than if I didn't.

PS: there is a "best practice" to pointing out a "stupid question." explain why the question is self-answering. or in this case, point out the oversight and state that it should lead to the answer but also help them determine the reasoning. basically don't bluntly say its a "stupid question" ;-)

PSS: that "stupid question" stuff is partially for humor. feel free to chuckle.

[rkarlsba]

I don't have a windows machine with python and git and all - only a tiny vm for testing.