Merge branch 'fix/import-error' into 'master'

Fix Import/Export error checking versions

Fixes small bug preventing the correct error message about Import/Export version being displayed.

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/20536

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5638

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/gitlab/import_export/version_checker.rb b/lib/gitlab/import_export/version_checker.rb
index abfc694b879..de3fe6d822e 100644
--- a/lib/gitlab/import_export/version_checker.rb
+++ b/lib/gitlab/import_export/version_checker.rb
@@ -25,7 +25,7 @@ module Gitlab
 
       def verify_version!(version)
         if Gem::Version.new(version) > Gem::Version.new(Gitlab::ImportExport.version)
-          raise Gitlab::ImportExport::Error("Import version mismatch: Required <= #{Gitlab::ImportExport.version} but was #{version}")
+          raise Gitlab::ImportExport::Error.new("Import version mismatch: Required <= #{Gitlab::ImportExport.version} but was #{version}")
         else
           true
         end