Fix typo in deprecate msg + reformat to 80 char max


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14411 a5019735-40e9-0310-863c-91ae7b9d1cf9
Rename a bunch of __unused fields to __unused0, since some Android
NDK's appear to #define __unused to __attribute__((__unused__)),
causing the build to fail in bizarre ways.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14412 a5019735-40e9-0310-863c-91ae7b9d1cf9