Fix typo from base to based (GH-18055)

(cherry picked from commit 558f07891170fe5173f277d3749e92d844de0a27)

Co-authored-by: Michael Haas <micha2718l@gmail.com>

diff --git a/Lib/webbrowser.py b/Lib/webbrowser.py
index 82bff835fdd0be6419e646d6b223bd15ed13bc7a..e052e51cdec5aea8acde54bfb421f887cb8bc0cf 100755 (executable)
--- a/Lib/webbrowser.py
+++ b/Lib/webbrowser.py
@@ -87,7 +87,7 @@ def open_new_tab(url):
 
 
 def _synthesize(browser, *, preferred=False):
-    """Attempt to synthesize a controller base on existing controllers.
+    """Attempt to synthesize a controller based on existing controllers.
 
     This is useful to create a controller when a user specifies a path to
     an entry in the BROWSER environment variable -- we can copy a general