(System Environment): Clean up text for load-average errors.

diff --git a/lispref/os.texi b/lispref/os.texi
index f6870245b691885b9b46119fb3c02f39adbfacb4..7e358c205712cf3a0fa0326dbf75cf34a4c304cb 100644 (file)
--- a/lispref/os.texi
+++ b/lispref/os.texi
@@ -796,10 +796,10 @@ averages, which indicate the average number of processes trying to run.
 If @var{use-float} is non-@code{nil}, then they are returned
 as floating point numbers and without multiplying by 100.
 
-An error is thrown if the load average can't be obtained.  In some
-cases making it work would require Emacs being installed setuid or
-setgid so that it can read kernel information, and that usually isn't
-advisable.
+If it is impossible to obtain the load average, this function signals
+an error.  On some platforms, access to load averages requires
+installing Emacs as setuid or setgid so that it can read kernel
+information, and that usually isn't advisable.
 
 @example
 @group