can-calc-bit-timing.c: Reformat help/usage output to be compatible with help2man.

Gbp-Pq: Name 0020-can-calc-bit-timing.c-Reformat-help-usage-output-to-.patch

can-calc-bit-timing.c

@@ -660,12 +660,12 @@ int main(int argc, char *argv[])
 			break;
 
 		case '?':
-			print_usage(argv[0]);
+			print_usage(basename(argv[0]));
 			exit(EXIT_SUCCESS);
 			break;
 
 		default:
-			print_usage(argv[0]);
+			print_usage(basename(argv[0]));
 			exit(EXIT_FAILURE);
 			break;
 		}