Bring hstore's comment into line with style of other contrib comments.

tglsfdc · tglsfdc · commit f5fc1de501d0 · 2011-02-15T14:21:45.000-05:00
All the other ones that are primarily a new datatype say "data type for
&lt;purpose&gt;", so make this one similar.
diff --git a/contrib/hstore/hstore.control b/contrib/hstore/hstore.control
@@ -1,5 +1,5 @@
 # hstore extension
-comment = 'store sets of (key, value) pairs'
+comment = 'data type for storing sets of (key, value) pairs'
 default_version = '1.0'
 module_pathname = '$libdir/hstore'
 relocatable = true
