Allow @param and @return docblock lines more flexibility with whitesp…

…ace characters

The regular expressions would not parse @param and @return docblock lines if
they had more than one space character between the tag and its parameters.
The single spaces are replaced with \s+ in the regular expressions to allow
any number of spaces between the tags and their parameters.

JsonRpc2/Controller.php

@@ -316,14 +316,14 @@ private function parseMethodDocComment($method)
 
         $lines = preg_split ('/$\R?^/m', $method->getDocComment());
         for ($i=0; $i<count($lines); $i++) {
-            preg_match("/@param ([\w\\\\\[\]]+) $variableRegex/", $lines[$i], $paramMatches);
+            preg_match("/@param\s+([\w\\\\\[\]]+)\s+$variableRegex/", $lines[$i], $paramMatches);
             if (!empty($paramMatches)) {
                 $subject = &$this->methodInfo['params'][$paramMatches[2]];
                 $subject = $infoTpl;
                 $subject['name'] = $paramMatches[2];
                 $subject['type'] = $paramMatches[1];
             } else {
-                preg_match("/@return ([\w\\\\\[\]]+)/", $lines[$i], $paramMatches);
+                preg_match("/@return\s+([\w\\\\\[\]]+)/", $lines[$i], $paramMatches);
                 if (!empty($paramMatches)) {
                     $subject = &$this->methodInfo['return'];
                     $subject = $infoTpl;