get_phys_pages(), get_avphys_pages() no longer read /proc/meminfo

[Jakub Wilk <jwilk@xxxxxxxxx>]

The get_phys_pages.3 man page reads:

> These functions obtain the required information by scanning the 
> MemTotal and MemFree fields of /proc/meminfo.

This is no longer the case. Since glibc 2.23, they use sysinfo(2) 
instead:

https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=0ce657c576bf1b24

--
Jakub Wilk