Set a log prefix for each plugin and remove go-dynect global log prefix (#6336)

command/internal_plugin.go

@@ -1,6 +1,7 @@
 package command
 
 import (
+	"fmt"
 	"log"
 	"strings"
 
@@ -41,6 +42,8 @@ func (c *InternalPluginCommand) Run(args []string) int {
 	pluginType := args[0]
 	pluginName := args[1]
 
+	log.SetPrefix(fmt.Sprintf("%s-%s (internal) ", pluginName, pluginType))
+
 	switch pluginType {
 	case "provider":
 		pluginFunc, found := InternalProviders[pluginName]

main.go

@@ -18,6 +18,8 @@ import (
 )
 
 func main() {
+	// Override global prefix set by go-dynect during init()
+	log.SetPrefix("")
 	os.Exit(realMain())
 }