cleanup: rubocop: fix Layout/IndentHeredoc in Redmine::UnifiedDiffTest#test_one_line_new_files

git-svn-id: http://svn.redmine.org/redmine/trunk@18973 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/lib/redmine/unified_diff_test.rb

@@ -139,33 +139,32 @@ DIFF
   end
 
   def test_one_line_new_files
-    diff = Redmine::UnifiedDiff.new(<<-DIFF
+    diff = Redmine::UnifiedDiff.new(<<~DIFF)
-diff -r 000000000000 -r ea98b14f75f0 README1
+      diff -r 000000000000 -r ea98b14f75f0 README1
---- /dev/null
+      --- /dev/null
-+++ b/README1
+      +++ b/README1
-@@ -0,0 +1,1 @@
+      @@ -0,0 +1,1 @@
-+test1
+      +test1
-diff -r 000000000000 -r ea98b14f75f0 README2
+      diff -r 000000000000 -r ea98b14f75f0 README2
---- /dev/null
+      --- /dev/null
-+++ b/README2
+      +++ b/README2
-@@ -0,0 +1,1 @@
+      @@ -0,0 +1,1 @@
-+test2
+      +test2
-diff -r 000000000000 -r ea98b14f75f0 README3
+      diff -r 000000000000 -r ea98b14f75f0 README3
---- /dev/null
+      --- /dev/null
-+++ b/README3
+      +++ b/README3
-@@ -0,0 +1,3 @@
+      @@ -0,0 +1,3 @@
-+test4
+      +test4
-+test5
+      +test5
-+test6
+      +test6
-diff -r 000000000000 -r ea98b14f75f0 README4
+      diff -r 000000000000 -r ea98b14f75f0 README4
---- /dev/null
+      --- /dev/null
-+++ b/README4
+      +++ b/README4
-@@ -0,0 +1,3 @@
+      @@ -0,0 +1,3 @@
-+test4
+      +test4
-+test5
+      +test5
-+test6
+      +test6
-DIFF
+    DIFF
-    )
     assert_equal 4, diff.size
     assert_equal "README1", diff[0].file_name
   end