Ignore submodules when committing via release.sh scripts

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Use default ignore settings when committing via release.sh scripts

When this script was invented, the --exclude-standard option did not yet
exist... Now it does.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Minor touchups to findutils/release.sh

We now simply touch all the autoconf-generated files and we prefer to
change the directory in a subshell.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Update xargs.exe to version 4.4.2

Now Ilya Basin can use the -d option!

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>