Issue #23811: Add missing newline to the PyCompileError error message.

Patch by Alex Shkop.

diff --cc Lib/py_compile.py
Simple merge

diff --cc Misc/NEWS
index 9f60a3e25e9027b9f6411ecddeccb4a2c5958afa,7370cb16098c0bf76b3162b8b583b77b6307ce74..5e4706bba524bccdca8b8ebc215f245c118470ab
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -31,8 -29,10 +31,11 @@@ Core and Builtin
  Library
  -------
  
 -- Issue #17898: Fix exception in gettext.py when parsing certain plural forms.
+ - Issue #23811: Add missing newline to the PyCompileError error message.
+   Patch by Alex Shkop.
+ 
 +- Issue #21116: Avoid blowing memory when allocating a multiprocessing shared
 +  array that's larger than 50% of the available RAM.  Patch by Médéric Boquien.
  
  - Issue #22982: Improve BOM handling when seeking to multiple positions of
    a writable text file.