make-changelog.pl: use a cache directory, improve bug number detection
-rw-r--r-- 108 README
-rwxr-xr-x 3421 github-apply.sh
-rwxr-xr-x 12904 make-changelog.pl
-rwxr-xr-x 5942 make-signatures.pl
-rwxr-xr-x 3925 makebranch.sh
-rwxr-xr-x 4592 maketag.sh
-rwxr-xr-x 3936 patchwork-apply.sh
-rwxr-xr-x 676 sob2from.sh
-rwxr-xr-x 4011 update_kernel.sh