Updated .gitignore rules for /lang directory

assigned to @Dyszczyk

By Mateusz Gbiorczyk on 2020-07-07T07:48:28 (imported from GitLab)

approved this merge request

By Dyszczo on 2020-07-07T07:49:17 (imported from GitLab)

assigned to @mateuszgbiorczyk and unassigned @Dyszczyk

By Dyszczo on 2020-07-07T07:49:20 (imported from GitLab)

mentioned in commit 5340e480

By Mateusz Gbiorczyk on 2020-07-07T07:50:29 (imported from GitLab)

merged

By Mateusz Gbiorczyk on 2020-07-07T07:50:30 (imported from GitLab)