GetRecentTester: Fix path to test apps

get_test_app_ref() computes a path relative to
BTestShell::GlobalTestDir() that is supposed to contain test apps that
will be launched with launch_test_app(). The path is incorrect so
several tests fail.

The test apps are actually just in BTestShell::GlobalTestDir(). Fixing
this resolves 6 of the 12 failing tests in the BRoster tests.

Change-Id: I4b287c19fd83d3afe40dca137fea2bd61a0f9359
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2114
Reviewed-by: Adrien Destugues <[email protected]>
Reviewed-by: Axel Dörfler <[email protected]>

src/tests/kits/app/broster/GetRecentTester.cpp

@@ -275,7 +275,7 @@ get_test_app_ref(RecentAppsTestAppId id, entry_ref *ref)
 		err = testDir ? B_OK : B_NAME_NOT_FOUND;
 	if (!err) {
 		char path[B_PATH_NAME_LENGTH];
-		sprintf(path, "%s/../kits/app/%s%s", testDir, kRecentAppsTestAppFilenames[id],
+		sprintf(path, "%s/%s%s", testDir, kRecentAppsTestAppFilenames[id],
 #if TEST_R5
 		"_r5"
 #else