ICU-4221 fix for boundaries data

X-SVN-Rev: 16826
diff --git a/icu4c/source/data/locales/en_US_POSIX.txt b/icu4c/source/data/locales/en_US_POSIX.txt
index 4a68599..1f8ff77 100644
--- a/icu4c/source/data/locales/en_US_POSIX.txt
+++ b/icu4c/source/data/locales/en_US_POSIX.txt
@@ -6,6 +6,9 @@
 // * Source File: ../../../locale/common/main/en_US_POSIX.xml
 // *
 // ***************************************************************************
+/**
+ *  ICU <specials> source: ../../../locale/icu/main/en_US_POSIX.xml
+ */
 en_US_POSIX{
     NumberElements{
         ".",
@@ -28,4 +31,7 @@
         "0.000000E+000",
     }
     Version{"1.2"}
+    boundaries{
+        word{"word_POSIX"}
+    }
 }