fixed a typo

Author git <vivec@telvanni.eu>
Author date 2018-09-02 11:13:06
Author local date 2018-09-02 13:13:06 +0200
Committer git <vivec@telvanni.eu>
Committer date 2018-09-02 11:13:06
Committer local date 2018-09-02 13:13:06 +0200
Commit 014b4008ea17a7a2706d8e20423da8bf97ef0c41
Tree 386c47beb2d89c5c8a0bf807289c04a500dc7a64
Parent 62e8684b95b9da216cc1ece7b92f8773ea38a00d
fixed a typo