Hotfix: Swap uppercase/lowercase for ssh feature

[derimagia]

Fix for #122

[4U6U57]

Tested locally, looks good.

View smoke test

[avalera:~/git-open] master*
± git fetch upstream pull/123/head:123-pr
remote: Counting objects: 3, done.
remote: Total 3 (delta 2), reused 3 (delta 2), pack-reused 0
Unpacking objects: 100% (3/3), done.
From github.com:paulirish/git-open
 * [new ref]         refs/pull/123/head -> 123-pr

[avalera:~/git-open] master*
± git checkout 123-pr
Switched to branch '123-pr'

[avalera:~/git-open] 123-pr*
± git remote -v
origin  gitlab:4U6U57/git-open (fetch)
origin  gitlab:4U6U57/git-open (push)
upstream        git@github.com:paulirish/git-open.git (fetch)
upstream        git@github.com:paulirish/git-open.git (push)

[avalera:~/git-open] 123-pr*
± BROWSER=echo git open
https://gitlab.com/4U6U57/git-open/tree/123-pr

View unit test

[avalera:~/git-open] 123-pr*
± npm test

> git-open@2.0.0 test /home/avalera/git-open
> npm run unit && npm run lint:package && npm run lint:man && npm run lint:readme && npm run lint:editorconfig


> git-open@2.0.0 unit /home/avalera/git-open
> bats test/

 ✓ test environment
 ✓ help text
 ✓ invalid option
 ✓ url: insteadOf handling
 ✓ gh: basic
 ✓ gh: branch
 ✓ gh: non-origin remote
 ✓ gh: without git user
 ✓ gh: ssh origin
 ✓ gh: git protocol origin
 ✓ gh: git open --issue
 ✓ gh: gist
 ✓ basic: # and % in branch names are URL encoded
 ✓ basic: tracked remote is default
 ✓ basic: https url can contain port
 ✓ basic: ssh url has port removed from http url
 ✓ basic: http url scheme is preserved
 ✓ sshconfig: basic
 ✓ sshconfig: no action on no match
 ✓ sshconfig: check case sensitivity
 ✓ sshconfig: multitarget host
 ✓ sshconfig: host substitution in hostname
 ✓ sshconfig: host wildcard * matches zero or more chars
 ✓ sshconfig: host wildcard ? matches exactly one char
 ✓ sshconfig: overriding host rules
 ✓ bitbucket: basic
 ✓ bitbucket: non-origin remote
 ✓ bitbucket: open source view
 ✓ bitbucket: open source view with a slash/branch
 ✓ bitbucket: ssh:// clone urls
 ✓ bitbucket: no username@ in final url
 ✓ bitbucket: Bitbucket Server
 ✓ bitbucket: Bitbucket Server branch
 ✓ bitbucket: Bitbucket Server private user repos
 ✓ bitbucket: Bitbucket Server with different root context
 ✓ bitbucket: Bitbucket Server with different root context with multiple parts
 ✓ bitbucket: Bitbucket Server private user repos with different root context
 ✓ gitlab: default ssh origin style
 ✓ gitlab: ssh://git@ origin
 ✓ gitlab: separate domains
 ✓ gitlab: special domain and path
 ✓ gitlab: different port
 ✓ vsts: https url
 ✓ vsts: ssh url
 ✓ vsts: on-premises tfs http url
 ✓ vsts: branch
 ✓ vsts: on-premises tfs branch
 ✓ vsts: issue
 ✓ vsts: default project repository - issue

49 tests, 0 failures

> git-open@2.0.0 lint:package /home/avalera/git-open
> pjv --recommendations --warnings

{ valid: true }

> git-open@2.0.0 lint:man /home/avalera/git-open
> markdownlint --config markdownlint.json git-open.1.md


> git-open@2.0.0 lint:readme /home/avalera/git-open
> markdownlint --config markdownlint.json README.md


> git-open@2.0.0 lint:editorconfig /home/avalera/git-open
> eclint check git-open* readme* .travis.yml