realtime: fix parameter name clash in pi-test7 due to memlock option added

Hi Subrata,
Please accept the patch below.

Apologies to resend it as I forgot to tag subject with [PATCH] previously :)

Thanks,
Gowri
---
realtime: fix parameter name clash in pi-test7 due to memlock option added

Below patch just renames the parameter name for number of mid priority threads in pi-test7 from -m to -x. Original one clashes with our common memlock option used across all RT tests.

Also, pi-test7 is already disabled in our default run profile, so this patch can silently update the test without any impact on any other test.

Testing Informations:
Tested pi-test7 binary with the patch for the changes.

---

Index: ltp-full-20090630/testcases/realtime/func/pi-tests/testpi-7.c
===================================================================
@@ -80,7 +80,7 @@
 	printf("testpi-7 specific options:\n");
 	printf("  -i#     #: number of iterations\n");
 	printf("  -f      #: Use flag mutex\n");
-	printf("  -m#     #:number of mid priority threads\n");
+	printf("  -x#     #:number of mid priority threads\n");
 }
 
 int parse_args(int c, char *v)

@@ -96,7 +96,7 @@
                 case 'i':
                         iterations = atoi(v);
                         break;
-                case 'm':
+                case 'x':
                         med_threads = atoi(v);
                         break;
                 default:

@@ -246,11 +246,11 @@
 	int i,numcpus;
 	setup();
 
-	rt_init("hfi:m:", parse_args, argc, argv);
+	rt_init("hfi:x:", parse_args, argc, argv);
 
 	if (!med_threads) {
 		printf("This test requires that at least NRCPUS medium priority threads run\n");
-		printf("If it is run bound to a single CPU, you can specify -m 1\n");
+		printf("If it is run bound to a single CPU, you can specify -x 1\n");
 		printf("No User input , using default value for NRCPUS");
 		numcpus = sysconf(_SC_NPROCESSORS_ONLN);
 		med_threads = numcpus;

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Thanks.

Regards--
Subrata

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