. fixed parsing bug, when a '%%' was used after all arguments in a format string.

. mention the '%%' syntax for printing literal '%'
 in the documentation. (it's standard printf legacy, but nonetheless)


[SVN r15075]

libs/format

@@ -1 +1 @@
-Subproject commit 813747153ad7c1d6226a906cb01c400e7be999ba
+Subproject commit ee2ed45450ce50df79658a159ec42bc074053813