not using anymore manipulators that gcc-2.95 lacks

so it compiles with old gcc.


[SVN r21855]

libs/format

@@ -1 +1 @@
-Subproject commit 33ff28bce1d3ccdbd0c3fdf11e8236a9610cd60c
+Subproject commit d30e33487661405b6722405da47853f6bc8496c5