Apply suggestion from @bearomorphism

Co-authored-by: Tim Hsiung <bear890707@gmail.com>

Author: yjaw

commitizen/commands/commit.py

@@ -115,7 +115,7 @@ def _rewrap_body(self, message: str) -> str:
         ):  # do nothing for no limit
             return message
 
-        message_parts = message.split("\n", 2)
+        lines = message.split("\n")
         if len(message_parts) < 3:
             return message