tests: escape backslash in makepatch.py inline file
This avoids some SyntaxWarning on Python 3.8 due to unescaped \.
Differential Revision: https://phab.mercurial-scm.org/D5840
--- a/tests/test-import-eol.t Mon Feb 04 14:05:26 2019 -0800
+++ b/tests/test-import-eol.t Mon Feb 04 14:10:10 2019 -0800
@@ -17,9 +17,9 @@
> 'empty:stripped-crlf': b'\r\n'}[sys.argv[1]])
> w(b' d\n')
> w(b'-e\n')
- > w(b'\ No newline at end of file\n')
+ > w(b'\\ No newline at end of file\n')
> w(b'+z\r\n')
- > w(b'\ No newline at end of file\r\n')
+ > w(b'\\ No newline at end of file\r\n')
> EOF
$ hg init repo
--- a/tests/test-mq-eol.t Mon Feb 04 14:05:26 2019 -0800
+++ b/tests/test-mq-eol.t Mon Feb 04 14:10:10 2019 -0800
@@ -23,9 +23,9 @@
> w(b' c\r\n')
> w(b' d\n')
> w(b'-e\n')
- > w(b'\ No newline at end of file\n')
+ > w(b'\\ No newline at end of file\n')
> w(b'+z\r\n')
- > w(b'\ No newline at end of file\r\n')
+ > w(b'\\ No newline at end of file\r\n')
> EOF
$ cat > cateol.py <<EOF