use UTC for tests to avoid timezone dependence

Author: sqs

diff/diff_test.go

@@ -7,8 +7,13 @@ import (
 	"reflect"
 	"strings"
 	"testing"
+	"time"
 )
 
+func init() {
+	time.Local = time.UTC
+}
+
 func TestParseHunkNoChunksize(t *testing.T) {
 	filename := "sample_no_chunksize.diff"
 	diffData, err := ioutil.ReadFile(filepath.Join("testdata", filename))

diff/testdata/sample_file.diff

@@ -1,5 +1,5 @@
---- oldname	2009-10-11 15:12:20.000000000 -0700
-+++ newname	2009-10-11 15:12:30.000000000 -0700
+--- oldname	2009-10-11 15:12:20.000000000 +0000
++++ newname	2009-10-11 15:12:30.000000000 +0000
 @@ -1,3 +1,9 @@
 +This is an important
 +notice! It should

diff/testdata/sample_file_extended.diff

@@ -1,7 +1,7 @@
 diff --git a/vcs/git_cmd.go b/vcs/git_cmd.go
 index aa4de15..7c048ab 100644
---- oldname	2009-10-11 15:12:20.000000000 -0700
-+++ newname	2009-10-11 15:12:30.000000000 -0700
+--- oldname	2009-10-11 15:12:20.000000000 +0000
++++ newname	2009-10-11 15:12:30.000000000 +0000
 @@ -1,3 +1,9 @@
 +This is an important
 +notice! It should

diff/testdata/sample_multi_file.diff

@@ -1,8 +1,8 @@
 diff --ruN a/oldname1 b/newname1
 old mode 0777
 new mode 0755
---- oldname1	2009-10-11 15:12:20.000000000 -0700
-+++ newname1	2009-10-11 15:12:30.000000000 -0700
+--- oldname1	2009-10-11 15:12:20.000000000 +0000
++++ newname1	2009-10-11 15:12:30.000000000 +0000
 @@ -1,3 +1,9 @@
 +This is an important
 +notice! It should
@@ -30,8 +30,8 @@ new mode 0755
 -check this dokument. On
 +check this document. On
 diff --ruN a/oldname2 b/newname2
---- oldname2	2009-10-11 15:12:20.000000000 -0700
-+++ newname2	2009-10-11 15:12:30.000000000 -0700
+--- oldname2	2009-10-11 15:12:20.000000000 +0000
++++ newname2	2009-10-11 15:12:30.000000000 +0000
 @@ -1,3 +1,9 @@
 +This is an important
 +notice! It should

diff/testdata/sample_multi_file_single.diff

@@ -1,6 +1,6 @@
 diff --ruN a/oldname1 b/newname1
---- oldname1	2009-10-11 15:12:20.000000000 -0700
-+++ newname1	2009-10-11 15:12:30.000000000 -0700
+--- oldname1	2009-10-11 15:12:20.000000000 +0000
++++ newname1	2009-10-11 15:12:30.000000000 +0000
 @@ -1,3 +1,9 @@
 +This is an important
 +notice! It should