Add append(bool) to OStringBuffer.

include/rtl/strbuf.hxx

@@ -532,6 +532,23 @@ public:
         return append( sz, rtl_str_valueOfBoolean( sz, b ) );
     }
 
+    /**
+        Appends the string representation of the <code>bool</code>
+        argument to the string buffer.
+
+        The argument is converted to a string as if by the method
+        <code>String.valueOf</code>, and the characters of that
+        string are then appended to this string buffer.
+
+        @param   b   a <code>bool</code>.
+        @return  this string buffer.
+     */
+    OStringBuffer & append(bool b)
+    {
+        sal_Char sz[RTL_STR_MAX_VALUEOFBOOLEAN];
+        return append( sz, rtl_str_valueOfBoolean( sz, b ) );
+    }
+
     /**
         Appends the string representation of the <code>char</code>
         argument to this string buffer.