[skip changelog] Enhance test

Author: silvanocerza

legacy/builder/resolve_library.go

@@ -51,7 +51,7 @@ func ResolveLibrary(ctx *types.Context, header string) *libraries.Library {
 		// Certain libraries might have the same name but be different.
 		// This usually happens when the user includes two or more custom libraries that have
 		// different header name but are stored in a parent folder with identical name, like
-		// ./Lib1/src/lib1.h and ./Lib2/src/lib2.h
+		// ./libraries1/Lib/lib1.h and ./libraries2/Lib/lib2.h
 		// Without this check the library resolution would be stuck in a loop.
 		// This behaviour has been reported in this issue:
 		// https://github.com/arduino/arduino-cli/issues/973