Resolving all compile errors via a script

This may leave dupe calls to tst_exit in main, but those are easier
to deal (and much less) than no-compile scenarios.

As a side-effect, fix all trailing whitespace issues.

Signed-off-by: Garrett Cooper <yanegomi@gmail.com>
diff --git a/testcases/kernel/syscalls/nice/nice03.c b/testcases/kernel/syscalls/nice/nice03.c
index fc5409f..3300859 100644
--- a/testcases/kernel/syscalls/nice/nice03.c
+++ b/testcases/kernel/syscalls/nice/nice03.c
@@ -136,6 +136,7 @@
 	}
 
 	cleanup();
+	tst_exit();
 
 }
 
@@ -170,4 +171,4 @@
 	 */
 	TEST_CLEANUP;
 
-}
+}
\ No newline at end of file