get-developers: fix parentheses for print

Python3 complains about missing parentheses.

$ ./support/scripts/get-developers
  File "./support/scripts/get-developers", line 45
    print f
          ^
SyntaxError: Missing parentheses in call to 'print'

Signed-off-by: Gaël PORTAY <gael.portay@savoirfairelinux.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

support/scripts/get-developers

@@ -42,7 +42,7 @@ def __main__():
     if args.check:
         files = getdeveloperlib.check_developers(devs)
         for f in files:
-            print f
+            print(f)
 
     # Handle the architecture action
     if args.architecture is not None: