message: parse repo root path from xml
diff: @@ -48,8 +48,9 @@ svn.prototype.exec = function(cwd, args, options = {}) {
  svn.prototype.getRepositoryRoot = async function(path) {
  try {
  - let result = await this.exec(path, ["info", "--show-item", "wc-root"]);
  - return result;
  + let result = await this.exec(path, ["info", "--xml"]);
  + let rootPath = result.match(/<wcroot-abspath>(.*)<\/wcroot-abspath>/i)[1];
  + return rootPath;
  } catch (error) {
  throw new Error("not a SVN repo");
  }
  