Fix l_strcmp misbehavior on strings with embedded NULs
Fix l_strcmp misbehavior on strings with embedded NULs

strlen(c) != c.ToString().Length if c has embedded NULs

Failed test:

assert(not('\0\0\0\0' < '\0\0\0'))

Stevie-O/SharpLua,Stevie-O/SharpLua,Stevie-O/SharpLua