message: Do not use PWD entry as the cwd for fls files
  When using docker, the PWD entry refers to a directory inside the docker
  image. It is much safer to take the dirname of the .fls file as the
  working directory.
  Related to
diff: @@ -576,12 +576,7 @@ export class Manager {
  private parseFlsContent(content: string, flsFile: string): {input: string[], output: string[]} {
  const inputFiles: Set<string> = new Set()
  const outputFiles: Set<string> = new Set()
  - let pwd = path.dirname(flsFile)
  - const pwdRes = /^PWD\s*(.*)$/m.exec(content)
  - if (pwdRes) {
  - pwd = pwdRes[1]
  - }
  -
  + const pwd = path.dirname(flsFile)
  const regex = /^(?:(INPUT)\s*(.*))|(?:(OUTPUT)\s*(.*))$/gm
  // regex groups
  // #1: an INPUT entry --> #2 input file path
  