GNU C Library master sources branch release/2.26/master updated. glibc-2.26-64-g305f4f0

[Joseph Myers]

Clearly we need to add execution tests that use the glob64 and globfree64 
interfaces (which would fall back to acting as compilation tests with 
build-many-glibcs.py, so at least ensuring a non-compat glob64 symbol is 
always exported).  (That's about ensuring the expected APIs are always 
present on master in future, not about the release branch issue; we don't 
have bots testing build-many-glibcs.py on release branches.)

-- 
Joseph S. Myers
joseph@codesourcery.com