Issue #7092: Fix the DeprecationWarnings emitted by the standard library
when using the -3 flag.  Patch by Florent Xicluna.
diff --git a/Lib/formatter.py b/Lib/formatter.py
index 834b560..e0a8fe1 100644
--- a/Lib/formatter.py
+++ b/Lib/formatter.py
@@ -228,7 +228,8 @@
             self.align = None
             self.writer.new_alignment(None)
 
-    def push_font(self, (size, i, b, tt)):
+    def push_font(self, font):
+        size, i, b, tt = font
         if self.softspace:
             self.hard_break = self.para_end = self.softspace = 0
             self.nospace = 1