Update ResourceLoader.xml to clarify behaviour when no file is found

doc/classes/ResourceLoader.xml

@@ -76,7 +76,7 @@
 				The registered [ResourceFormatLoader]s are queried sequentially to find the first one which can handle the file's extension, and then attempt loading. If loading fails, the remaining ResourceFormatLoaders are also attempted.
 				An optional [param type_hint] can be used to further specify the [Resource] type that should be handled by the [ResourceFormatLoader]. Anything that inherits from [Resource] can be used as a type hint, for example [Image].
 				The [param cache_mode] property defines whether and how the cache should be used or updated when loading the resource. See [enum CacheMode] for details.
-				Returns an empty resource if no [ResourceFormatLoader] could handle the file.
+				Returns an empty resource if no [ResourceFormatLoader] could handle the file, and prints an error if no file is found at the specified path.
 				GDScript has a simplified [method @GDScript.load] built-in method which can be used in most situations, leaving the use of [ResourceLoader] for more advanced scenarios.
 				[b]Note:[/b] If [member ProjectSettings.editor/export/convert_text_resources_to_binary] is [code]true[/code], [method @GDScript.load] will not be able to read converted files in an exported project. If you rely on run-time loading of files present within the PCK, set [member ProjectSettings.editor/export/convert_text_resources_to_binary] to [code]false[/code].
 				[b]Note:[/b] Relative paths will be prefixed with [code]"res://"[/code] before loading, to avoid unexpected results make sure your paths are absolute.