xfstests: RESULTS_DIR needs to be an absolute path

Some tests 'cd <somedir>' and then direct output to $RESULT_DIR,
which fails if the current working directory is not $here.
Regardless, if an external results directory is to be used it needs
to have a full path specified and the use of $here as the base of
the results files is completely incorrect.

Hence change all the $here/$seqres* references to simply be
$seqres*, and instead encode the full path to the results in
$RESULT_DIR.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Phil White <pwhite@sgi.com>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>

tests/generic/001

@@ -192,7 +192,7 @@ _mark_iteration()
 #
 _chain()
 {
-    $AWK_PROG -v full_file=$here/$seqres.full -v verify=$verify <$tmp.config '
+    $AWK_PROG -v full_file=$seqres.full -v verify=$verify <$tmp.config '
 BEGIN	{ nfile = 0 }
 /^\#/	{ next }
 	{ file[nfile] = $1
@@ -240,7 +240,7 @@ END	{ srand('$iter')
 	    }
 	  }
 	}' \
-	| tee -a $here/$seqres.full | sh
+	| tee -a $seqres.full | sh
 }
 
 _check()
@@ -294,7 +294,7 @@ _cleanup()
     fi
 }
 
-rm -f $here/$seqres.full
+rm -f $seqres.full
 status=0
 _cleanup
 status=1
@@ -308,7 +308,7 @@ _setup
 for iter in 1 2 3 4 5
 do
     echo -n "iter $iter chain ... "
-    echo "iter $iter" >> $here/$seqres.full
+    echo "iter $iter" >> $seqres.full
     _chain
     _check
     if [ -f $tmp.bad ]