Fix notify specs

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

spec/mailers/notify_spec.rb

@@ -239,7 +239,7 @@ describe Notify do
           it_behaves_like 'an assignee email'
 
           it 'has the correct subject' do
-            should have_subject /#{merge_request.title} \(!#{merge_request.iid}\)/
+            should have_subject /#{merge_request.title} \(##{merge_request.iid}\)/
           end
 
           it 'contains a link to the new merge request' do
@@ -275,7 +275,7 @@ describe Notify do
           end
 
           it 'has the correct subject' do
-            should have_subject /#{merge_request.title} \(!#{merge_request.iid}\)/
+            should have_subject /#{merge_request.title} \(##{merge_request.iid}\)/
           end
 
           it 'contains the name of the previous assignee' do
@@ -303,7 +303,7 @@ describe Notify do
           end
 
           it 'has the correct subject' do
-            should have_subject /#{merge_request.title} \(!#{merge_request.iid}\)/
+            should have_subject /#{merge_request.title} \(##{merge_request.iid}\)/
           end
 
           it 'contains the new status' do
@@ -426,7 +426,7 @@ describe Notify do
         it_behaves_like 'a note email'
 
         it 'has the correct subject' do
-          should have_subject /#{merge_request.title} \(!#{merge_request.iid}\)/
+          should have_subject /#{merge_request.title} \(##{merge_request.iid}\)/
         end
 
         it 'contains a link to the merge request note' do