While-loop readability improvements.

[alejandro-colomar]

---

Revisions:

v1b

• Rebase

$ git rd
1:  49e5b01a ! 1:  682e6ae8 lib/, src/: Reorder while() conditions for safety
    @@ Metadata
      ## Commit message ##
         lib/, src/: Reorder while() conditions for safety
     
    -    In conditions that check for NULL after assignment, it's safer to put
    -    the NULL check first, as a mistake would result in a compiler error,
    -    as opposed to unwanted implicit conversions.  It's also more readable.
    +    In conditions that perform simple assignment (=) before comparison,
    +    it's safer to put the comparison first, as a mistake would result in a
    +    compiler error, as opposed to assigning something incorrect.
    +    It's also more readable, IMO.
     
         Signed-off-by: Alejandro Colomar <alx@kernel.org>
     

[hallyn]

You're showing your prejudice against left-handed people :)

kidding.

[alejandro-colomar]

You're showing your prejudice against left-handed people :)

kidding.

:)