Change flag alias

Author: donbarbos

Doc/library/ast.rst

@@ -2578,7 +2578,7 @@ The following options are accepted:
 
    .. versionadded:: next
 
-.. option:: -o <level>
+.. option:: -O <level>
             --optimize <level>
 
    Optimization level for parser.

Doc/whatsnew/3.14.rst

@@ -874,6 +874,7 @@ ast
   command-line interface.
   (Contributed by Semyon Moroz in :gh:`133367`.)
 
+
 bdb
 ---
 

Lib/ast.py

@@ -646,7 +646,7 @@ def main():
     parser.add_argument('--feature-version',
                         type=str, default=None, metavar='VERSION',
                         help='python version in the format 3.x (e.g., 3.10)')
-    parser.add_argument('-o', '--optimize',
+    parser.add_argument('-O', '--optimize',
                         type=int, default=-1, metavar='LEVEL',
                         help='optimization level for parser (default -1)')
     parser.add_argument('--show-empty', default=False, action='store_true',