filemerge: fix regular expression pattern to be bytes
# skip-blame just a bytes prefix
Differential Revision: https://phab.mercurial-scm.org/D1888
--- a/mercurial/filemerge.py Wed Jan 17 20:09:10 2018 -0500
+++ b/mercurial/filemerge.py Wed Jan 17 20:09:52 2018 -0500
@@ -529,7 +529,7 @@
out = a
a = repo.wvfs.join(back.path())
replace = {'local': a, 'base': b, 'other': c, 'output': out}
- args = util.interpolate(r'\$', replace, args,
+ args = util.interpolate(br'\$', replace, args,
lambda s: util.shellquote(util.localpath(s)))
cmd = toolpath + ' ' + args
if _toolbool(ui, tool, "gui"):