Alexander Amelkin 956ae2b372 Finalize refactoring of string comparisons
Unify the comparison idioms use.
Always use `if(!strcmp())` for "if string equals"
and `if(strcmp())` for "if string is not equal".
Never use `== 0` and `!= 0` with `strcmp()`.

Minor reformatting of the code immediately surrounding the
refactored lines.

Resolves ipmitool/ipmitool#104

Signed-off-by: Alexander Amelkin <alexander@amelkin.msk.ru>
2020-06-10 13:46:57 +03:00
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