Make configure assume nvi can store backups in /var/tmp.

--- a/dist/configure	2014-09-01 14:46:01.075778095 +0200
+++ b/dist/configure	2014-09-01 14:52:08.411790122 +0200
@@ -21319,23 +21319,8 @@
 if test "${vi_cv_path_preserve+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  	dirlist="/var/preserve /var/tmp /usr/tmp"
-	vi_cv_path_preserve=no
-	for i in $dirlist; do
-		if test -d $i/vi.recover; then
-			vi_cv_path_preserve=$i/vi.recover
-			break;
-		fi
-	done
-	if test "$vi_cv_path_preserve" = no; then
-		for i in $dirlist; do
-			if test -d $i -a -w $i; then
-				vi_cv_path_preserve=$i/vi.recover
-				break;
-			fi
-		done
-
-	fi
+#	Assume /var/tmp
+	vi_cv_path_preserve=/var/tmp/vi.recover
 fi
 
 if test "$vi_cv_path_preserve" = no; then
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<tr><td><span title='2021-01-03 06:55:31 +0100'>2021-01-03</span></td><td><a href='/guix/commit/gnu/packages/xiph.scm?id=15bffa0cc2470ffc48d40fbc6320b5d5d786373c'>gnu: libshout: Update to 2.4.5.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-10-13 23:39:27 +0200'>2020-10-13</span></td><td><a href='/guix/commit/gnu/packages/xiph.scm?id=f7175626ffce578be1bc6df4916a129f86557872'>Merge branch 'master' into staging</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-10-06 01:04:47 +0200'>2020-10-06</span></td><td><a href='/guix/commit/gnu/packages/xiph.scm?id=d3b9cbd9c8728f977aa12708d0b034e609f07436'>gnu: libshout: Update to 2.4.4.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>