Moves hyphen as last arg.

[mdeltour]

Hyphen in [...] returns an error : "grep: Invalid range end"
In my opinion in this case, hyphen needs to be last or first.

[joncalhoun]

What OS are you on, or what is different that is causing this to not work for you but to work for me? Trying to figure out what, if any, notes I should add to the vids.

[mdeltour]

I found this document that gives more information.
https://lists.gnu.org/archive/html/bug-coreutils/2015-02/msg00033.html

For your information:

Distributor ID:	Ubuntu
Description:	Ubuntu 16.04.6 LTS
Release:	16.04
Codename:	xenial

[Surendrajat]

Facing same issue here

➜  module01 git:(master) ✗ go_test --run=TestSum -v
grep: Invalid range end

System info:

Distributor ID:	elementary
Description:	elementary OS 5.1 Hera
Release:	5.1
Codename:	hera

[joncalhoun]

I need to redo the video, or at least add a note to it, before I can commit this. I'm letting you know here so you are aware that I'm not ignoring this, but I don't want the code here to not match the videos.

[Surendrajat]

It is too trivial to spot in the video, and nobody's gonna type this long script off that video either. Everybody's gonna copy from README anyway so updating that should suffice, IMO.