mke2fs: add an option in mke2fs.conf to proceed after a delay

If mke2fs needs to ask the user for permission, and the user doesn't
type anything the specified delay in the /etc/mke2fs.conf file,
proceed as if the user had said yes.  The default is to do what we
currently do, which is to wait until the user answers the question one
way or the other.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/misc/mke2fs.conf.5.in b/misc/mke2fs.conf.5.in
index 02efdce..8e25892 100644
--- a/misc/mke2fs.conf.5.in
+++ b/misc/mke2fs.conf.5.in
@@ -68,7 +68,10 @@
 .I mke2fs.conf
 file.  They will be described in more detail in future sections of this
 document.
-.TP 
+.TP
+.I [options]
+Contains relations which influence how mke2fs behaves.
+.TP
 .I [defaults]
 Contains relations which define the default parameters
 used by
@@ -84,6 +87,18 @@
 .B -T
 option to
 .BR mke2fs (8).
+.SH THE [options] STANZA
+The following relations are defined in the
+.I [options]
+stanza.
+.TP
+.I proceed_delay
+If this relation is set to a positive integer, then if mke2fs will
+proceed after waiting
+.I proceed_delay
+seconds, after asking the user for permission to proceed, even if the
+user has not answered the question.  Defaults to 0, which means to wait
+until the user answers the question one way or another.
 .SH THE [defaults] STANZA
 The following relations are defined in the 
 .I [defaults]