Fix output string of pepper_hash_for_uma.

So that the string can be directly copied into histograms.xml.

BUG=111542

Review URL: https://codereview.chromium.org/164253002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251255 0039d316-1c4b-4281-b951-d872f2087c98

ppapi/tools/pepper_hash_for_uma.cc

@@ -31,7 +31,7 @@ int main(int argc, char **argv) {
     // Strip off the signed bit because UMA doesn't support negative values,
     // but takes a signed int as input.
     int hash = static_cast<int>(data & 0x7fffffff);
-    printf("<int value=\"%d\" label=\"%s\">\n", hash, argv[i]);
+    printf("<int value=\"%d\" label=\"%s\"/>\n", hash, argv[i]);
   }
   return 0;
 }