[Documentation] Clang-tidy readability-redundant-declaration consistency.

Release notes checks order and consistent Clang-tidy readability-redundant-declaration description.

llvm-svn: 285778

clang-tools-extra/docs/ReleaseNotes.rst

@@ -123,17 +123,17 @@ Improvements to clang-tidy
   Flags function parameters of a pointer type that could be changed to point to
   a constant type instead.
 
+- New `readability-redundant-declaration
+  <http://clang.llvm.org/extra/clang-tidy/checks/readability-redundant-declaration.html>`_ check
+
+  Finds redundant variable and function declarations.
+
 - New `readability-redundant-member-init
   <http://clang.llvm.org/extra/clang-tidy/checks/readability-redundant-member-init.html>`_ check
 
   Flags member initializations that are unnecessary because the same default
   constructor would be called if they were not present.
 
-- New `readability-redundant-declaration
-  <http://clang.llvm.org/extra/clang-tidy/checks/readability-redundant-declaration.html>`_ check
-
-  Warns about duplicate variable declarations.
-
 Fixed bugs:
 
 - `modernize-make-unique

clang-tools-extra/docs/clang-tidy/checks/readability-redundant-declaration.rst

@@ -21,7 +21,9 @@ They can for instance be unintentional left overs from previous refactorings
 when code has been moved around. Having redundant declarations could in worst
 case mean that there are typos in the code that cause bugs.
 
-Normally the code can be automatically fixed, clang-tidy can remove the second
-declaration. However there are 2 cases when you need to fix the code manually:
- * When the declarations are in different header files.
- * When multiple variables are declared together.
+Normally the code can be automatically fixed, :program:`clang-tidy` can remove
+the second declaration. However there are 2 cases when you need to fix the code
+manually:
+
+* When the declarations are in different header files;
+* When multiple variables are declared together.