DATA: Minor fix to change MetaData to Metadata for consistency

git-svn-id: http://libphonenumber.googlecode.com/svn/trunk/resources@593 ee073f10-1060-11df-b6a4-87a95322a99c
diff --git a/PhoneNumberMetadataForTesting.xml b/PhoneNumberMetadataForTesting.xml
index 055f471..2f8bb05 100644
--- a/PhoneNumberMetadataForTesting.xml
+++ b/PhoneNumberMetadataForTesting.xml
@@ -14,7 +14,7 @@
 
      @author: Shaopeng Jia
 
-     MetaData on Phone Number Plan and formatting rules. This file is used
+     Metadata on Phone Number Plan and formatting rules. This file is used
      solely for the purpose of unittesting, so data in this file is not
      necessarily consistent with that of PhoneNumberMetadata.xml.
 -->