Issue #25004: Handle out-of-disk-space error in LargeMmapTests

Patch from John Beck.
diff --git a/Lib/test/test_mmap.py b/Lib/test/test_mmap.py
index 4d23f16..ad93a59 100644
--- a/Lib/test/test_mmap.py
+++ b/Lib/test/test_mmap.py
@@ -727,7 +727,10 @@
             f.write(tail)
             f.flush()
         except (OSError, OverflowError):
-            f.close()
+            try:
+                f.close()
+            except (OSError, OverflowError):
+                pass
             raise unittest.SkipTest("filesystem does not have largefile support")
         return f
 
diff --git a/Misc/ACKS b/Misc/ACKS
index 435cd12..88e55e0 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -100,6 +100,7 @@
 Samuel L. Bayer
 Donald Beaudry
 David Beazley
+John Beck
 Neal Becker
 Robin Becker
 Torsten Becker