test/run: Return 0 from run(), exit value already reflects failures

There's no need to return non-zero if there have been failures in
run(), because the exit value is already determined from the number
of failures reported in the log file.

Return zero, so that this doesn't cause the script to fail, given we
now run it with -e.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

test/run

@@ -110,7 +110,7 @@ run() {
 		"Interrupted, press any key to quit"		\
 		9
 
-	return ${STATUS_FAIL}
+	return 0
 }
 
 # demo() - Simpler path for demo purposes