Shrink character buffer size in raw_ostream::write_hex to 16 characters intead of 20 as that's the largest string a 64-bit hex value can be.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259313 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed