qemu_multiarch_testing: update
* qemu_multiarch_testing/.gitignore: New file.
* qemu_multiarch_testing/README: Update statistics.
* qemu_multiarch_testing/hdc.dir/init2: Run "make check".
* qemu_multiarch_testing/make-hdc-img.sh: Robustify,
automatically calculate hdc image size.
* qemu_multiarch_testing/parallel-build-hdc-img.sh: Reduce
hdb image size. Report completion of each parallelized task.
diff --git a/qemu_multiarch_testing/.gitignore b/qemu_multiarch_testing/.gitignore
new file mode 100644
index 0000000..9ba3a0a
--- /dev/null
+++ b/qemu_multiarch_testing/.gitignore
@@ -0,0 +1,2 @@
+hdc.dir/strace
+hdc.img