Fix //** still effecting to be a comment block start

Author: lessmind

syntax/php.vim

@@ -2911,8 +2911,8 @@ syntax match phpCommentStar contained "^\s*\*$"
 if !exists("php_ignore_phpdoc")
     syntax case ignore
 
-    syntax region phpDocComment   start="/\*\*" end="\*/" keepend contains=phpCommentTitle,phpDocTags,phpTodo
-    syntax region phpCommentTitle contained matchgroup=phpDocComment start="/\*\*" matchgroup=phpCommmentTitle keepend end="\.[ \t\r<&]"me=e-1 end="[^{]@"me=s-2,he=s-1 end="\*/"me=s-1,he=s-1 contains=phpCommentStar,phpTodo,phpDocTags containedin=phpComment
+    syntax region phpDocComment   start="^\s*/\*\*" end="\*/" keepend contains=phpCommentTitle,phpDocTags,phpTodo
+    syntax region phpCommentTitle contained matchgroup=phpDocComment start="^\s*/\*\*" matchgroup=phpCommmentTitle keepend end="\.[ \t\r<&]"me=e-1 end="[^{]@"me=s-2,he=s-1 end="\*/"me=s-1,he=s-1 contains=phpCommentStar,phpTodo,phpDocTags containedin=phpComment
 
     syntax region phpDocTags  start="{@\(example\|id\|internal\|inheritdoc\|link\|source\|toc\|tutorial\)" end="}" containedin=phpComment
     syntax match  phpDocTags  /@\(abstract\|author\|copyright\|deprecated\|example\|final\|ignore\|internal\|license\|link\|see\|static\|since\|throws\|todo\|tutorial\|uses\)\s*.*$/ contains=phpDocParamDesc containedin=phpComment