specs-go/v1/config.go: Capitalize Labels

This field was not similar to the other fields and causes problems when dealing with using this struct to convert between docker v1 and oci v1 repositories (I cheat a little by doing this, I realize it's not a long term solution).

Still, this seems out of place and I wanted to fix it while I noticed.

Signed-off-by: Erik Hollensbe <[email protected]>

Author: Erik Hollensbe

specs-go/v1/config.go

@@ -44,7 +44,7 @@ type ImageConfig struct {
 	WorkingDir string `json:"WorkingDir,omitempty"`
 
 	// Labels contains arbitrary metadata for the container.
-	Labels map[string]string `json:"labels,omitempty"`
+	Labels map[string]string `json:"Labels,omitempty"`
 
 	// StopSignal contains the system call signal that will be sent to the container to exit.
 	StopSignal string `json:"StopSignal,omitempty"`