--- a/contrib/check-code.py Tue Dec 29 18:11:14 2015 -0500
+++ b/contrib/check-code.py Sun Dec 27 15:24:48 2015 -0800
@@ -122,7 +122,8 @@
(r'^( *)\t', "don't use tabs to indent"),
(r'sed (-e )?\'(\d+|/[^/]*/)i(?!\\\n)',
"put a backslash-escaped newline after sed 'i' command"),
- (r'^diff *-\w*u.*$\n(^ \$ |^$)', "prefix diff -u with cmp"),
+ (r'^diff *-\w*[uU].*$\n(^ \$ |^$)', "prefix diff -u/-U with cmp"),
+ (r'^\s+(if)? diff *-\w*[uU]', "prefix diff -u/-U with cmp"),
(r'seq ', "don't use 'seq', use $TESTDIR/seq.py"),
(r'\butil\.Abort\b', "directly use error.Abort"),
(r'\|&', "don't use |&, use 2>&1"),