add clarifying comments
use ObserverPathnameExtension to remove these files
improve comment
cgdb: update style
cgdb: update 0.6.7 bottle.

Closes #30986.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
activemq: remove used skip_clean
clamav: use more specific skip_clean
emacs: info files are always kept now
Fix install names in files in sbin
arping: update 2.13 bottle.

Fixes #30984.
Simplify onoe
arping 2.14
arping: update 2.14 bottle.

Closes #30973.
blink1 1.91
blink1: update 1.91 bottle.

Closes #30974.
cgrep 6.4.4
cgrep: update 6.4.4 bottle.

Closes #30976.
clib 1.2.2
clib: update 1.2.2 bottle.

Closes #30975.
emscripten 1.21.1