glm: fix head

Closes #34832.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
Prefer cached_location method over @clone ivar
dub: prefer cached_location method over @clone ivar
qt5: prefer cached_location method over @clone ivar
saltstack: prefer cached_location method over @clone ivar
icdiff 1.5.1

Closes #34833.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
Use quiet_safe_system where applicable
qt: use https for head
qt5: use https for head, fix branch
qt5: fix init-repository quiet flag
Include FileUtils in AbstractDownloadStrategy
Use quiet_safe_system to silence CVS checkouts
Move tool path methods to AbstractDownloadStrategy
Provide access to the specs hash indirectly via a meta attribute
xulrunner: clean up download strategy
mat: simplify download strategy
Pull strategy for downloading from research.att.com into core
vmalloc 2013-05-31
Add more general support for passing credentials to curl
Reorganize methods in CurlDownloadStrategy