bpo-38149: Call sys.audit() only once per call for glob.glob(). (GH-18360)

(cherry picked from commit 54b4f14712)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

Lib/glob.py

@@ -31,6 +31,7 @@ def iglob(pathname, *, recursive=False):
     If recursive is true, the pattern '**' will match any files and
     zero or more directories and subdirectories.
     """
+    sys.audit("glob.glob", pathname, recursive)
     it = _iglob(pathname, recursive, False)
     if recursive and _isrecursive(pathname):
         s = next(it)  # skip empty string
@@ -38,7 +39,6 @@ def iglob(pathname, *, recursive=False):
     return it
 
 def _iglob(pathname, recursive, dironly):
-    sys.audit("glob.glob", pathname, recursive)
     dirname, basename = os.path.split(pathname)
     if not has_magic(pathname):
         assert not dironly

Misc/NEWS.d/next/Library/2020-02-05-11-24-16.bpo-38149.GWsjHE.rst

@@ -0,0 +1,2 @@
+:func:`sys.audit` is now called only once per call of :func:`glob.glob` and
+:func:`glob.iglob`.