Update SourceMapGenerator.php

Author: robocoder

src/SourceMap/SourceMapGenerator.php

@@ -172,16 +172,19 @@ public function generateJson()
         // An optional source root, useful for relocating source files on a server or removing repeated values in the
         // 'sources' entry. This value is prepended to the individual entries in the 'source' field.
         $root = $this->options['sourceRoot'];
+
         if ($root) {
             $sourceMap['sourceRoot'] = $root;
-            // A list of symbol names used by the 'mappings' entry.
         }
 
         // A list of original sources used by the 'mappings' entry.
         $sourceMap['sources'] = array();
-        foreach($this->sources as $source_uri => $source_filename) {
+
+        foreach ($this->sources as $source_uri => $source_filename) {
             $sourceMap['sources'][] = $this->normalizeFilename($source_filename);
         }
+
+        // A list of symbol names used by the 'mappings' entry.
         $sourceMap['names'] = array();
 
         // A string with the encoded mapping data.