From e2e87d73c39612781be059072a2a08c30f743459 Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Fri, 4 Mar 2022 11:01:37 +1100
Subject: [PATCH] Reverted SyntaxError change to match other plugins

---
 src/PIL/PpmImagePlugin.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PIL/PpmImagePlugin.py b/src/PIL/PpmImagePlugin.py
index 725ddec10..9ed34a0cd 100644
--- a/src/PIL/PpmImagePlugin.py
+++ b/src/PIL/PpmImagePlugin.py
@@ -94,7 +94,7 @@ class PpmImageFile(ImageFile.ImageFile):
         try:
             mode = MODES[magic_number]
         except KeyError:
-            raise SyntaxError("Not a PPM image file") from None
+            raise SyntaxError("not a PPM file")
 
         self.custom_mimetype = {
             b"P4": "image/x-portable-bitmap",