Use True/False instead of 1/0
diff --git a/Lib/fontTools/misc/arrayTools.py b/Lib/fontTools/misc/arrayTools.py
index f680578..c05e195 100644
--- a/Lib/fontTools/misc/arrayTools.py
+++ b/Lib/fontTools/misc/arrayTools.py
@@ -93,8 +93,8 @@
xMin, yMin, xMax, yMax = (max(xMin1, xMin2), max(yMin1, yMin2),
min(xMax1, xMax2), min(yMax1, yMax2))
if xMin >= xMax or yMin >= yMax:
- return 0, (0, 0, 0, 0)
- return 1, (xMin, yMin, xMax, yMax)
+ return False, (0, 0, 0, 0)
+ return True, (xMin, yMin, xMax, yMax)
def unionRect(rect1, rect2):
"""Return the smallest rectangle in which both input rectangles are fully