commit dce1e2051523ebf4aaf667e5e1163acbb45b747b
author Andrew Jeffery <andrew@aj.id.au> Mon Feb 06 17:55:15 2023 +1030
committer Andrew Jeffery <andrew@aj.id.au> Tue Feb 07 16:52:28 2023 +1030
tree 2e09d3f05c3680c07033c9ba92e4e73163688fb5
parent 826ba7b6bfca5f45fb3676f6285d9ef5a27c418b

physical: Fix bugprone-narrowing-conversions

```
/home/andrew/src/openbmc/phosphor-led-sysfs/build/../physical.cpp:138:14: error: narrowing conversion from 'int' to signed type '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' (aka 'char') is implementation-defined [bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions,-warnings-as-errors]
    tmp[0] = toupper(tmp[0]);
             ^
```

Change-Id: I58c9a47008272b856427419557dc3e592936b5eb
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>