Add Dinesh Subhraveti to MAINTAINERS

Docker-DCO-1.1-Signed-off-by: Dinesh Subhraveti <dineshs@altiscale.com> (github: dineshs-altiscale)
Fixed up if statement

Signed-off-by: Levi Gross <levi@levigross.com>

Docker-DCO-1.1-Signed-off-by: Levi Gross <levi@levigross.com> (github: levigross)
Merge pull request #6335 from levigross/master

Fixed up if statement
Merge pull request #6060 from dineshs-altiscale/maintainers

Add Dinesh Subhraveti to MAINTAINERS