Space in section header

[joeyJsonar]

Consider the following

[REPLICA_SET] 
additional_directories = ['${JSONAR_LOCALDIR}/credentials', '${JSONAR_DATADIR}/sonarfinder/reports']

This crashes the parser.

If I were to patch:

const SECTION = new RegExp(/^\s*\[([^\]]+)]$/);

to

const SECTION = new RegExp(/^\s*\[([^\]]+)]\s*$/);

this fixes the problem.