build: Append commit hash to the main LND context

It can be disabled via the new `logging.no-commit-hash` config option.

lnd.go

@@ -155,6 +155,15 @@ func Main(cfg *Config, lisCfg ListenerCfg, implCfg *ImplementationCfg,
 		}
 	}()
 
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	ctx, err := build.WithBuildInfo(ctx, cfg.LogConfig)
+	if err != nil {
+		return fmt.Errorf("unable to add build info to context: %w",
+			err)
+	}
+
 	mkErr := func(format string, args ...interface{}) error {
 		ltndLog.Errorf("Shutting down because error in main "+
 			"method: "+format, args...)
@@ -188,10 +197,6 @@ func Main(cfg *Config, lisCfg ListenerCfg, implCfg *ImplementationCfg,
 		strings.Title(BitcoinChainName), network,
 	)
 
-	ctx := context.Background()
-	ctx, cancel := context.WithCancel(ctx)
-	defer cancel()
-
 	// Enable http profiling server if requested.
 	if cfg.Pprof.Profile != "" {
 		// Create the http handler.