Rules: comments: Allow empty comments

tests/rules/test_comments.py

@@ -163,3 +163,15 @@ class CommentsTestCase(RuleTestCase):
                    problem5=(9, 2),
                    problem6=(10, 4),
                    problem7=(13, 30))
+
+    def test_empty_comment(self):
+        conf = ('comments:\n'
+                '  require-starting-space: yes\n'
+                '  min-spaces-from-content: 2\n')
+        self.check('---\n'
+                   '# This is paragraph 1.\n'
+                   '#\n'
+                   '# This is paragraph 2.\n', conf)
+        self.check('---\n'
+                   'inline: comment  #\n'
+                   '\n', conf)

yamllint/rules/comments.py

@@ -79,6 +79,7 @@ def check(conf, token, prev, next):
 
         if (conf['require-starting-space'] and
                 comment.pointer + 1 < len(comment.buffer) and
-                comment.buffer[comment.pointer + 1] != ' '):
+                comment.buffer[comment.pointer + 1] != ' ' and
+                comment.buffer[comment.pointer + 1] != '\n'):
             yield LintProblem(comment.line, comment.column + 1,
                               'missing starting space in comment')