Reword SpaceBeforeBrace lint description
Reword SpaceBeforeBrace lint description

Alter slightly to refer to the specific curly brace rather than curly
braces in general, and use backticks instead of parentheses to make it
easier to read.

Change-Id: Ia068dae02f5dc6ffae8dea60928bc65ed299f4a0
Reviewed-on: http://gerrit.causes.com/36829
Tested-by: jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@causes.com>
Reviewed-by: Shane da Silva <6f6e68d1df92f30cb4b3ce35260ddf94a402f33d@causes.com>

baileyparker/scss-lint,philipgiuliani/scss-lint,bkeepers/scss-lint,gatero/scss-lint,leseulsteve/scss-lint,davecarter/scss-lint,cih/scss-lint,teoljungberg/scss-lint,gajus/scss-lint,dwayhs/scss-lint,chatzipan/scss-lint,golmansax/scss-lint,ivantsepp/scss-lint,ingdir/scss-lint