tests: don't fail tests when failing to write files

* tests/sample-test: Use framework_error_ rather than fail=1
* tests/chown/deref.sh: Likewise.
* tests/chown/preserve-root.sh: Likewise.
* tests/cp/src-base-dot.sh: Likewise.
* tests/dd/unblock-sync.sh: Likewise.
* tests/du/2g.sh: Likewise.
* tests/du/inacc-dest.sh: Likewise.
* tests/du/one-file-system.sh: Likewise.
* tests/fmt/goal-option.sh: Likewise.
* tests/ln/hard-backup.sh: Likewise.
* tests/ls/color-dtype-dir.sh: Likewise.
* tests/ls/m-option.sh: Likewise.
* tests/ls/stat-dtype.sh: Likewise.
* tests/ls/time-style-diag.sh: Likewise.
* tests/ls/x-option.sh: Likewise.
* tests/misc/chcon.sh: Likewise.
* tests/misc/nohup.sh: Likewise.
* tests/misc/od-N.sh: Likewise.
* tests/misc/sort-compress.sh: Likewise.
* tests/misc/tac-continue.sh: Likewise.
* tests/misc/time-style.sh: Likewise.
* tests/mv/backup-dir.sh: Likewise.
* tests/mv/dir2dir.sh: Likewise.
* tests/rm/dir-no-w.sh: Likewise.
* tests/rm/dir-nonrecur.sh: Likewise.
* tests/rm/inaccessible.sh: Likewise.
* tests/rm/interactive-always.sh: Likewise.
* tests/rm/interactive-once.sh: Likewise.
* tests/rm/rm3.sh: Likewise.
* tests/rm/v-slash.sh: Likewise.
* tests/touch/relative.sh: Likewise.

tests/dd/skip-seek2.sh

@@ -21,14 +21,14 @@
 print_ver_ dd
 
 
-echo LA:3456789abcdef > in || fail=1
+echo LA:3456789abcdef > in || framework_failure_
 (dd bs=1 skip=3 count=0 && dd bs=5) < in > out 2> /dev/null || fail=1
 case $(cat out) in
   3456789abcdef) ;;
   *) fail=1 ;;
 esac
 
-echo LA:3456789abcdef > in || fail=1
+echo LA:3456789abcdef > in || framework_failure_
 (dd bs=1 skip=3 count=0 && dd bs=5 count=2) < in > out 2> /dev/null || fail=1
 case $(cat out) in
   3456789abc) ;;

tests/dd/unblock-sync.sh

@@ -23,7 +23,7 @@ printf 000100020003xx > in || framework_failure_
 
 
 dd cbs=4 ibs=4 conv=unblock,sync < in > out 2> /dev/null || fail=1
-cat <<\EOF > exp || fail=1
+cat <<\EOF > exp || framework_failure_
 0001
 0002
 0003