Use SPDX for Apache-2.0 license

Author: ivankravets

pioinstaller/__init__.py

@@ -25,7 +25,7 @@
 __author__ = "PlatformIO"
 __email__ = "[email protected]"
 
-__license__ = "Apache Software License"
+__license__ = "Apache-2.0"
 __copyright__ = "Copyright 2014-present PlatformIO"