Prevent type exception on concatenation if diffstat returns None.
This will most often occur if diffstat is not installed in the
target platform, though may also happen in other cases where
diffstat fails to execute.
Signed-off-by: Sean Dague <sean@dague.net>
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
pulling from ../test1
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 2 changes to 2 files
(run 'hg update' to get a working copy)
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
pulling from ../test2
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
changeset: 2:b833d578451e
tag: tip
parent: 0:4536b1c2ca69
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: chmod +x a
changeset: 1:a187cb361a5a
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: a updated
changeset: 2:b833d578451e
tag: tip
parent: 0:4536b1c2ca69
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: chmod +x a
changeset: 1:a187cb361a5a
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: a updated
changeset: 0:4536b1c2ca69
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: added a b
resolving manifests
merging a
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
pulling from ../test2
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
changeset: 2:b833d578451e
tag: tip
parent: 0:4536b1c2ca69
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: chmod +x a
changeset: 1:d54568174d8e
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: b updated
changeset: 2:b833d578451e
tag: tip
parent: 0:4536b1c2ca69
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: chmod +x a
changeset: 1:d54568174d8e
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: b updated
changeset: 0:4536b1c2ca69
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: added a b
resolving manifests
getting a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
-rwxr-x---
-rwxr-x---
-rwxr-x---
rev offset length base linkrev nodeid p1 p2
0 0 0 0 0 b80de5d13875 000000000000 000000000000
1 0 0 0 2 37c42bd6cc03 b80de5d13875 000000000000
rev offset length base linkrev nodeid p1 p2
0 0 0 0 0 b80de5d13875 000000000000 000000000000
1 0 0 0 1 37c42bd6cc03 b80de5d13875 000000000000
rev offset length base linkrev nodeid p1 p2
0 0 0 0 0 b80de5d13875 000000000000 000000000000
1 0 5 1 1 7fe919cc0336 b80de5d13875 000000000000
2 5 0 2 2 37c42bd6cc03 b80de5d13875 000000000000