Change default status of pager to "off" (bug #53217). * NEWS: Announce change, and workaround for users who want pager enabled. * pager.cc (Vpage_screen_output): Change static variable initialization to false. * intro.txi: Delete paragraph mentioning that output is always sent through pager. * io.txi: Rewrite section on Paging Screen Output. * file-io.cc (Fstdout): Change documentation to say that stream MAY be filtered through a pager. * toplev.cc (Fsystem): Rewrite documentation showing how to use system command with a pager.

--- a/libinterp/corefcn/toplev.cc	Tue Feb 27 08:57:21 2018 -0800
+++ b/libinterp/corefcn/toplev.cc	Tue Feb 27 10:39:21 2018 -0800
@@ -175,6 +175,7 @@
 @example
 @group
 [~, text] = system ("cmd");
+more on;
 disp (text);
 @end group
 @end example
@@ -183,7 +184,10 @@
 or
 
 @example
+@group
+more on;
 printf ("%s\n", nthargout (2, "system", "cmd"));
+@end group
 @end example
 
 The @code{system} function can return two values.  The first is the