K 10
svn:author
V 6
eadler
K 8
svn:date
V 27
2018-06-13T00:45:38.727185Z
K 7
svn:log
V 356
top(1): several small bugfixes and nits

- initialize all maybe uninitialized vars with bogus values. This shuts
up the compiler, and causes crashes if it changes later.
- mark noreturn as noreturn
- removed unused macro
- handle x_procstate as runtime rather than pre-processor
- avoid using void functions in condtionals

Tested with clang, gcc 7, gcc 9

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