rewrite tests/stty/row-col-1 to avoid creating temp file

[Paul Eggert]

I noticed that "make check" left behind a file tests/stty/.saved_size,
because I ran it under GNU Emacs on Solaris 8 and the test is skipped
in that case.  I installed this to fix the little problem:

2006-09-18  Paul Eggert  <address@hidden>

        * tests/stty/row-col-1: Rewrite to avoid temporary file that is
        sometimes left behind if the test is skipped or interrupted.

--- tests/stty/row-col-1        17 Aug 2006 19:58:37 -0000      1.12
+++ tests/stty/row-col-1        18 Sep 2006 20:34:44 -0000
@@ -59,9 +59,7 @@
 '
 set $tests

-saved_size=.saved-size
-
-stty size > $saved_size \
+saved_size=`stty size` && test -n "$saved_size" \
   || { echo "$0: skipping this test: can't get window size" 1>&2;
        exit 77; exit; }

@@ -84,7 +82,7 @@
   shift; shift; shift
 done

-stty `cat $saved_size|sed 's/ / columns /;s/^/rows /'` || exit 1
-rm -f $saved_size
+set x $saved_size
+stty rows $2 columns $3 || exit 1

 exit $fail