Merge pull request #6266 from elprimato/spdx-conform-license

Change to SPDX conform license string

Author: sigmavirus24

requests/__version__.py

@@ -9,6 +9,6 @@
 __build__ = 0x023100
 __author__ = "Kenneth Reitz"
 __author_email__ = "me@kennethreitz.org"
-__license__ = "Apache 2.0"
+__license__ = "Apache-2.0"
 __copyright__ = "Copyright Kenneth Reitz"
 __cake__ = "\u2728 \U0001f370 \u2728"