Merge pull request #12655 from alalek:fix_printf_format_warning
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Wed, 26 Sep 2018 16:21:07 +0000 (16:21 +0000)
committerAlexander Alekhin <alexander.a.alekhin@gmail.com>
Wed, 26 Sep 2018 16:21:07 +0000 (16:21 +0000)

Trivial merge