VideoCommon: Silence -Wmaybe-uninitialized warnings.
Change another NULL to nullptr.
Merge pull request #1205 from rohit-n/null-nullptr

Change another NULL to nullptr.
Merge pull request #1195 from rohit-n/maybe-uninitialized

VideoCommon: Silence -Wmaybe-uninitialized warnings.
Spelling mistake
Merge pull request #1207 from Blackbird88/patch-1

Spelling mistake in VideoDialog