Revert "Make it readable"

This reverts commit 76fa38f.

Author: manunio

python_multipart/multipart.py

@@ -172,11 +172,7 @@ def parse_options_header(value: str | bytes | None) -> tuple[bytes, dict[bytes,
     # Pre check for mixed RFC2231 parameter continuations (e.g., `filename*` and `filename*0*`).
     # email.message.Message.get_params() handles these maliciously formed headers
     # differently in Python 3.12 vs 3.13. We validate them here to ensure consistent behavior.
-    param_names = [
-        part.split("=", 1)[0].strip().lower()
-        for part in params_part.split(";") 
-        if "=" in part
-    ]
+    param_names = [p.split("=", 1)[0].strip().lower() for p in params_part.split(";") if "=" in p]
     for name in param_names:
         if "*" in name:
             base, _, rest = name.partition("*")