[PATCH] get_phys_pages.3: glibc gets the info from sysinfo(2) since 2.23

[Alejandro Colomar <alx.manpages@gmail.com>]

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

Reported-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
---
 man3/get_phys_pages.3 | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/man3/get_phys_pages.3 b/man3/get_phys_pages.3
index 35f83fedb..a8a1ce3f4 100644
--- a/man3/get_phys_pages.3
+++ b/man3/get_phys_pages.3
@@ -55,15 +55,20 @@ The system could not provide the required information
 (possibly because the
 .I /proc
 filesystem was not mounted).
-.SH CONFORMING TO
-These functions are GNU extensions.
-.SH NOTES
-These functions obtain the required information by scanning the
+.SH VERSIONS
+Before glibc 2.23,
+these functions obtained the required information by scanning the
 .I MemTotal
 and
 .I MemFree
 fields of
 .IR /proc/meminfo .
+.SH CONFORMING TO
+These functions are GNU extensions.
+.SH NOTES
+Since glibc 2.23,
+these functions obtain the required information by calling
+.BR sysinfo (2).
 .PP
 The following
 .BR sysconf (3)
-- 
2.29.2