[LTP] [PATCH RFC 1/2] lib: add SAFE_READ_PROC_STATUS macro

[Petr Vorel]

> To parse /proc/PID/status files, for example:
>     SAFE_READ_PROC_STATUS(pid, "VmSwap:");

Reviewed-by: Petr Vorel <pvorel@suse.cz>

Kind regards,
Petr