llvm: add URLs for HEAD version

Closes #30900.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
Remove dead code

Formula objects are always constructed with an explicit name, so we no
longer need to special case an empty name or the name "__UNKNOWN__".
Add key? to BottleCollector
Mark private methods as private
Rename variable
Use [] on the instance rather than the wrapped hash
Separate tag matching and checksum lookup
Rename test
Raise ArgumentError when a symbol can't be mapped to a version

The fact that this is implemented as a hash lookup is an implementation
detail, so don't let the KeyError bubble up.
Don't raise when converting the tag to a version fails
appengine-java-sdk 1.9.7

Closes #30903.

Signed-off-by: Brett Koonce <koonce@gmail.com>
go-appengine-sdk (386) 1.9.7
go-appengine-sdk (amd64) 1.9.7
google-appengine 1.9.7

Closes #30906.
Remove more dead code
elasticsearch 1.2.2

Closes #30879.
awscli 1.3.23
awscli: add 1.3.23 bottle.

Closes #30907.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
Remove commentary from error message

It might be best not to use the word "lame" here, as it's often considered to be an ableist slur.

Closes #30915.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
diy: use configure as the heuristic for autotools

Closes #30912.