Fixed open file handle in fileutils.cc

Thanks Henrik L for pointing this out.

Review URL: http://webrtc-codereview.appspot.com/297001

git-svn-id: http://webrtc.googlecode.com/svn/trunk@1019 4adac7df-926f-26a2-2b94-8c16560cd09d

test/testsupport/fileutils.cc

@@ -55,6 +55,7 @@ std::string ProjectRootPath() {
         kProjectRootFileName;
     file = fopen(root_filename.c_str(), "r");
     if (file != NULL) {
+      fclose(file);
       return current_path + kPathDelimiter;
     }