What version are you running?
rbt --version

RBTools 0.7.11
What steps will reproduce the problem?


Prepare a test text file below and commit into SVN:

test2.txt:

--      T1 (ESF)                   65


svn rm test2.txt


svn diff:

Index: test2.txt

===================================================================

--- test2.txt   (revision 201771)

+++ test2.txt   (nonexistent)

@@ -1 +0,0 @@

---      T1 (ESF)                   65


rbt diff

CRITICAL: too many values to unpack





What is the expected output? What do you see instead?
It should show similar diff as "svn diff"

but it throws out erorr.
$ rbt diff

CRITICAL: too many values to unpack
What operating system are you using?
Ubuntu 16.04 LTS
Attach the debug out from the command.

$ $ rbt diff --debug
>>> RBTools 0.7.11
>>> Python 2.7.12 (default, Dec  4 2017, 14:50:18) 
[GCC 5.4.0 20160609]
>>> Running on Linux-4.4.0-112-generic-x86_64-with-Ubuntu-16.04-xenial
>>> Home = /home/rickliu
>>> Current directory = /tmp/rick_rb_test_trunk/
>>> Command line: rbt diff --debug
>>> Running: tf vc help
>>> Checking for a Subversion repository...
>>> Running: svn --non-interactive info
>>> Running: diff --version
>>> Running: svn --non-interactive --version -q
>>> repository info: Path: https://xxx.com/svn/, Base path: /rick_rb_test/trunk/, Supports changesets: False
>>> Making HTTP GET request to https://reviewboard-test.com/api/
>>> Running: svn --non-interactive info
>>> Running: diff --version
>>> Running: svn --non-interactive --version -q
>>> repository info: Path: https://xxx.com/svn/, Base path: /rick_rb_test/trunk, Supports changesets: False
>>> Running: svn --non-interactive status -q --ignore-externals
>>> Running: svn --non-interactive diff --diff-cmd=diff --notice-ancestry -r BASE
>>> Running: svn --non-interactive info test2.txt
>>> Running: svn --non-interactive diff --diff-cmd=diff --notice-ancestry -r BASE --no-diff-deleted
>>> Running: svn --non-interactive info test2.txt
>>> Running: svn --non-interactive info test2.txt
>>> Running: svn --non-interactive info test2.txt
Traceback (most recent call last):
  File "/usr/local/bin/rbt", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python2.7/dist-packages/rbtools/commands/main.py", line 133, in main
    command.run_from_argv([RB_MAIN, command_name] + args)
  File "/usr/local/lib/python2.7/dist-packages/rbtools/commands/__init__.py", line 665, in run_from_argv
    exit_code = self.main(*args) or 0
  File "/usr/local/lib/python2.7/dist-packages/rbtools/commands/diff.py", line 69, in main
    extra_args=extra_args)
  File "/usr/local/lib/python2.7/dist-packages/rbtools/clients/svn.py", line 405, in diff
    diff = self.convert_to_absolute_paths(diff, repository_info)
  File "/usr/local/lib/python2.7/dist-packages/rbtools/clients/svn.py", line 663, in convert_to_absolute_paths
    file, rest = self.parse_filename_header(line)
ValueError: too many values to unpack


Please provide any additional information below.
It's related to Ticket# 4546