diff -r 570e62f1dcf2 -r 7396508ad92b tests/test-impexp-branch.t
--- a/tests/test-impexp-branch.t	Mon Feb 11 16:27:20 2019 +0100
+++ b/tests/test-impexp-branch.t	Fri Feb 15 13:05:01 2019 -0800
@@ -6,7 +6,7 @@
   > import re
   > import sys
   > 
-  > head_re = re.compile('^#(?:(?:\\s+([A-Za-z][A-Za-z0-9_]*)(?:\\s.*)?)|(?:\\s*))$')
+  > head_re = re.compile(r'^#(?:(?:\\s+([A-Za-z][A-Za-z0-9_]*)(?:\\s.*)?)|(?:\\s*))$')
   > 
   > for line in sys.stdin:
   >     hmatch = head_re.match(line)