tweak error message
diff --git a/Lib/plat-mac/bundlebuilder.py b/Lib/plat-mac/bundlebuilder.py
index 09953e3..3d4f3c9 100755
--- a/Lib/plat-mac/bundlebuilder.py
+++ b/Lib/plat-mac/bundlebuilder.py
@@ -753,8 +753,8 @@
elif opt in ('-f', '--file'):
srcdst = arg.split(':')
if len(srcdst) != 2:
- usage("-f or --file argument must be an absolute path and "
- "a relative path, separated by a colon")
+ usage("-f or --file argument must be two paths, "
+ "separated by a colon")
builder.files.append(srcdst)
elif opt in ('-e', '--executable'):
builder.executable = arg