Rename env var

Author: dougthor42

gazelle/python/file_parser.go

@@ -72,7 +72,7 @@ func ParseCode(code []byte, path string) (*sitter.Node, error) {
 	if root.HasError() {
 		log.Printf("WARNING: failed to parse %q. The resulting BUILD target may be incorrect.", path)
 
-		verbose, envExists := os.LookupEnv("GAZELLE_VERBOSE")
+		verbose, envExists := os.LookupEnv("RULES_PYTHON_GAZELLE_VERBOSE")
 		if envExists && verbose == "1" {
 			for i := 0; i < int(root.ChildCount()); i++ {
 				child := root.Child(i)