Allow comment after if/unless clause

Signed-off-by: Rémy Coutable <remy@rymai.me>

rubocop/cop/line_break_around_conditional_block.rb

@@ -95,7 +95,7 @@ def start_clause_line?(line)
       end
 
       def end_clause_line?(line)
-        line =~ /^\s*(rescue|else|elsif|when)/
+        line =~ /^\s*(#|rescue|else|elsif|when)/
       end
 
       def begin_line?(line)

spec/rubocop/cop/line_break_around_conditional_block_spec.rb

@@ -256,6 +256,18 @@ def a_method
       expect(cop.offenses).to be_empty
     end
 
+    it "doesn't flag violation for #{conditional} followed by a comment" do
+      source = <<~RUBY
+          #{conditional} condition
+            do_something
+          end
+          # a short comment
+      RUBY
+      inspect_source(source)
+
+      expect(cop.offenses).to be_empty
+    end
+
     it "doesn't flag violation for #{conditional} followed by an end" do
       source = <<~RUBY
           class Foo