Fix BZ #116002.
Left justification of strings in myvprintf_str was mixed up.
Now fixed and %s formats changed accordingly.
In function myvprintf_int64: the local buffer was not large
enough to hold ULONG_MAX in binary notation. Numbers were
truncated at 39 digits. 
Testcases added.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14808 a5019735-40e9-0310-863c-91ae7b9d1cf9
Enhance the "Author" section of the manpage as suggested
in BZ #226609.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14809 a5019735-40e9-0310-863c-91ae7b9d1cf9