man-pages: fix missing manual title in heading
This was set in our manually written markdowns, but not in the man pages
generated through Cobra.
@@ -23,6 +23,7 @@ func generateManPages(opts *options) error {
Title: "DOCKER",
Section: "1",
Source: "Docker Community",
+ Manual: "Docker User Manuals",
}
// If SOURCE_DATE_EPOCH is set, in order to allow reproducible package
