Disable open file test for proctrack/aix too.

testsuite/expect/test7.9

@@ -42,7 +42,9 @@ set iterations       50
 print_header $test_id
 
 #
-# Test is incompatible with proctrack/rms, proctrack/sgi_job, and switch/elan
+# Test is incompatible with proctrack/aix, proctrack/rms, proctrack/sgi_job, 
+# and switch/elan
+#
 # Each leave open files, although we could clear the proctrack related files
 # by just closing all files after fd=3. Closing all files from switch/elan
 # would disable its use.
@@ -51,6 +53,11 @@ set invalid 0
 log_user 0
 spawn $scontrol show config
 expect {
+	-re "proctrack/aix" {
+		send_user "\nWARNING: test incompatible with proctrack/aix\n"
+		set invalid 1
+		exp_continue
+	}
 	-re "proctrack/rms" {
 		send_user "\nWARNING: test incompatible with proctrack/rms\n"
 		set invalid 1