Fixed a possible reading overflow in the var_string_to_int function.

Mentioned in ticket #1861.

-This line, and those below, will be ignored--

M    format_date_parser.hpp


[SVN r53485]

libs/date_time

@@ -1 +1 @@
-Subproject commit 49fe4d03ffc999812a395fd38fb8f7a355d9d7df
+Subproject commit 34e2312fa54f4012d2066ed7d932e16f61b516ed