fix typo in api/types/client.go
@@ -161,7 +161,7 @@ type ImageBuildOptions struct {
Dockerfile string
Ulimits []*units.Ulimit
// See the parsing of buildArgs in api/server/router/build/build_routes.go
- // for an explaination of why BuildArgs needs to use *string instead of
+ // for an explanation of why BuildArgs needs to use *string instead of
// just a string
BuildArgs map[string]*string
AuthConfigs map[string]AuthConfig
