memset test: fix padding size
memset test: fix to have more coverage
string test alignment fix by Mahesh Bodapati
fix string_memset so buffers are aligned properly
fix string_memset code
clean string_memset code
test memset with larger size range
add memset(buf, -5, 10) test see https://sourceware.org/bugzilla/show_bug.cgi?id=16554
string tests (memcpy, memset)