Vendored files are not ignored when multiple folder inputs are given

[Nixinova]

Folders like .git etc are not ignored by default when multiple folder inputs are given (e.g. linguist -a folderA folderB).

# folderA
file.js
# folderB
.gitignore
ignored
notignored.txt

> (await linguist(['folderA'])).files.results
{
  'folderA/file.js': 'JavaScript'
}

> (await linguist(['folderB'])).files.results
{
  'folderB/notignored.txt': 'Text'
}

> (await linguist(['folderA','folderB'])).files.results
{
  'folderA/.git/config': null,
  'folderA/.git/description': null,
  // ... whole .git folder
  'folderA/file.js': 'JavaScript',
  'folderB/notignored.txt': 'Text'
  // NOT `ignored` - good, gitattributes works still

Example

Gitattributes is still read correctly however.

[Nixinova]

Looks like using e.g. linguist -a -i foo triggers this issue as well

[Nixinova]

Gitattributes seems not to be properly read.

[Nixinova]

Properly fixed now