Add return False that was wrongly removed when resolving conflicts with main branch

Author: tanloong

Lib/sqlite3/__main__.py

@@ -78,6 +78,7 @@ def runsource(self, source, filename="<input>", symbol="single"):
             if not sqlite3.complete_statement(source):
                 return True
             execute(self._cur, source, theme=theme)
+        return False
 
 
 def main(*args):