Comment 1 for bug 1949004

This also makes life more difficult for the xPack GNU Arm Embedded GCC, but I already got used for each new release to have an unusual name.

My release numbering scheme looks like:

10.3.1: the original GNU version
10.3.1-2: the second Arm release of GNU 10.3.1
10.3.1-2.1: the first xPack release of the second Arm release of GNU 10.3.1
10.3.1-2.1.1: the first xpm release of the first xPack release of the second Arm release of GNU 10.3.1

Arm could use something like 10.3.1-2, instead of the random strings.