libbsd: update to 0.11.7

libbsd: update to 0.11.7

Changes:
084911c Release libbsd 0.11.7
3538d38 man: Discourage using the library in non-overlay mode
03fccd1 include: Adjust reallocarray() per glibc adoption
6b6e686 include: Adjust arc4random() per glibc adoption
da1f45a include: explicit_bzero() requires _DEFAULT_SOURCE
2f9eddc include: Simplify glibc version dependent macro handling
28298ac doc: Switch references from pkg-config to pkgconf
ef981f9 doc: Add missing empty line to separate README sections
6928d78 doc: Refer to the main git repository as primary
d586575 test: Fix explicit_bzero() test on the Hurd
be327c6 fgetwln: Add comment about lack of getwline(3) for recommendation
a14612d setmode: Dot not use saveset after free
f4baceb man: Rewrite gerprogname(3bsd) from scratch
f35c545 man: Lowercase man page title
b466b14 man: Document that some arc4random(3) functions are now in glibc 2.36
1f6a48b Sync arc4random(3) implementation from OpenBSD
873639e Fix ELF support for big endian SH
c9c78fd man: Use -compact also for alternative functions in libbsd(7)
5f21307 getentropy: Fix function cast for getauxval()

Signed-off-by: Nick Hainke <vincent@systemli.org>