Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From f23c25ca0a1d5deeb1257bff8eb1ebc25fd74a61 Mon Sep 17 00:00:00 2001
|From: Mark Grimes <mgrimes@cpan.org>
|Date: Fri, 5 Aug 2011 16:22:49 -0400
|Subject: [PATCH] Patch to format new 5.14 regex modifiers correctly. RT Bug
| #68870.
|
|---
| lib/Perl/Tidy.pm |    7 +++--
| t/test514regex.t |   60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
| 2 files changed, 64 insertions(+), 3 deletions(-)
| create mode 100644 t/test514regex.t
|
|diff --git a/lib/Perl/Tidy.pm b/lib/Perl/Tidy.pm
|index 35cea35..2665edd 100644
|--- a/lib/Perl/Tidy.pm
|+++ b/lib/Perl/Tidy.pm
--------------------------
Patching file lib/Perl/Tidy.pm using Plan A...
Hunk #1 succeeded at 23295.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/t/test514regex.t b/t/test514regex.t
|new file mode 100644
|index 0000000..cf149e2
|--- /dev/null
|+++ b/t/test514regex.t
--------------------------
(Creating file t/test514regex.t...)
Patching file t/test514regex.t using Plan A...
Hunk #1 succeeded at 1.
Hmm...  Ignoring the trailing garbage.
done

$ perl Makefile.PL && make && perl t/test514regex.t
Checking if your kit is complete...
Looks good
Writing Makefile for Perl::Tidy
Writing MYMETA.yml and MYMETA.json
cp lib/Perl/Tidy.pm.orig blib/lib/Perl/Tidy.pm.orig
cp lib/Perl/Tidy.pm blib/lib/Perl/Tidy.pm
cp bin/perltidy blib/script/perltidy
/usr/bin/perl -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/perltidy
Manifying blib/man1/perltidy.1
Manifying blib/man3/Perl::Tidy.3
1..1
# Running under perl version 5.014001 for freebsd
# Current time local: Sun Aug  7 08:49:11 2011
# Current time GMT:   Sun Aug  7 04:49:11 2011
# Using Test.pm version 1.25_02
got:$new = $str =~ s/One/Three/ u;
---
expected_output:$new = $str =~ s/One/Three/u;
not ok 1
# Test 1 got: "0" (t/test514regex.t at line 49)
#   Expected: "1"
#  t/test514regex.t line 49 is: ok ($ok,1);

$ echo 's///r' | perl -Iblib/lib bin/perltidy 
s///r

$ perl Makefile.PL && make && perl -Iblib/lib t/test514regex.t
Writing Makefile for Perl::Tidy
Writing MYMETA.yml and MYMETA.json
Skip blib/lib/Perl/Tidy.pm.orig (unchanged)
Skip blib/lib/Perl/Tidy.pm (unchanged)
cp bin/perltidy blib/script/perltidy
/usr/bin/perl -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/perltidy
Manifying blib/man1/perltidy.1
Manifying blib/man3/Perl::Tidy.3
1..1
# Running under perl version 5.014001 for freebsd
# Current time local: Sun Aug  7 08:52:39 2011
# Current time GMT:   Sun Aug  7 04:52:39 2011
# Using Test.pm version 1.25_02
ok 1