Detabbed.
diff --git a/Lib/plat-mac/appletrunner.py b/Lib/plat-mac/appletrunner.py
index adda7b1..8d46c2a 100755
--- a/Lib/plat-mac/appletrunner.py
+++ b/Lib/plat-mac/appletrunner.py
@@ -6,12 +6,12 @@
 import os
 import sys
 for name in ["__rawmain__.py", "__rawmain__.pyc", "__main__.py", "__main__.pyc"]:
-	realmain = os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])),
-					  "Resources", name)
-	if os.path.exists(realmain):
-		break
+    realmain = os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])),
+                      "Resources", name)
+    if os.path.exists(realmain):
+        break
 else:
-	sys.stderr.write("%s: cannot find applet main program\n" % sys.argv[0])
-	sys.exit(1)
+    sys.stderr.write("%s: cannot find applet main program\n" % sys.argv[0])
+    sys.exit(1)
 sys.argv.insert(1, realmain)
 os.execve(sys.executable, sys.argv, os.environ)