Merge pull request #19687 from alalek:videoio_docs_fixes_3.4
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Sun, 7 Mar 2021 16:23:24 +0000 (16:23 +0000)
committerAlexander Alekhin <alexander.a.alekhin@gmail.com>
Sun, 7 Mar 2021 16:23:24 +0000 (16:23 +0000)

Trivial merge