Honor the 'disable' directive at the end of a multiline comment

Closes #799
diff --git a/CHANGELOG b/CHANGELOG
index 9f2c8df..fe6e020 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,10 @@
 # All notable changes to this project will be documented in this file.
 # This project adheres to [Semantic Versioning](http://semver.org/).
 
+## [0.29.1] UNRELEASED
+### Fixed
+- Honor a disable directive at the end of a multiline comment.
+
 ## [0.29.0] 2019-11-28
 ### Added
 - Add the `--quiet` flag to suppress output. The return code is 1 if there are
diff --git a/yapf/yapflib/style.py b/yapf/yapflib/style.py
index 77c9172..ba528c0 100644
--- a/yapf/yapflib/style.py
+++ b/yapf/yapflib/style.py
@@ -129,7 +129,7 @@
         characters. Slightly right (one more indent character) if cannot
         vertically align continuation lines with indent characters.
 
-      For options FIXED, and VALIGN-RIGHT are only available when USE_TABS is
+      Options FIXED and VALIGN-RIGHT are only available when USE_TABS is
       enabled."""),
     CONTINUATION_INDENT_WIDTH=textwrap.dedent("""\
       Indent width used for line continuations."""),
diff --git a/yapf/yapflib/yapf_api.py b/yapf/yapflib/yapf_api.py
index f5240ab..3f7c94a 100644
--- a/yapf/yapflib/yapf_api.py
+++ b/yapf/yapflib/yapf_api.py
@@ -252,7 +252,10 @@
         while index < len(uwlines):
           uwline = uwlines[index]
           if uwline.is_comment and _EnableYAPF(uwline.first.value.strip()):
-            break
+            if not re.search(DISABLE_PATTERN,
+                             uwline.first.value.strip().split('\n')[-1].strip(),
+                             re.IGNORECASE):
+              break
           uwline.disable = True
           index += 1
     elif re.search(DISABLE_PATTERN, uwline.last.value.strip(), re.IGNORECASE):
diff --git a/yapftests/yapf_test.py b/yapftests/yapf_test.py
index e13955f..f1685a0 100644
--- a/yapftests/yapf_test.py
+++ b/yapftests/yapf_test.py
@@ -195,6 +195,19 @@
       formatted_code, _, _ = yapf_api.FormatFile(filepath, style_config='pep8')
       self.assertCodeEqual(code, formatted_code)
 
+  def testEnabledDisabledSameComment(self):
+    code = textwrap.dedent(u"""\
+        # yapf: disable
+        a(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb, ccccccccccccccccccccccccccccccc, ddddddddddddddddddddddd, eeeeeeeeeeeeeeeeeeeeeeeeeee)
+        # yapf: enable
+        # yapf: disable
+        a(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb, ccccccccccccccccccccccccccccccc, ddddddddddddddddddddddd, eeeeeeeeeeeeeeeeeeeeeeeeeee)
+        # yapf: enable
+        """)
+    with utils.TempFileContents(self.test_tmpdir, code) as filepath:
+      formatted_code, _, _ = yapf_api.FormatFile(filepath, style_config='pep8')
+      self.assertCodeEqual(code, formatted_code)
+
   def testFormatFileLinesSelection(self):
     unformatted_code = textwrap.dedent(u"""\
         if a:    b