server,client: Wipe the outbound buffer when CONFIDENTIAL.
+ commit 5ac7e6ba19fa5ed472b50c1b12ba7cf94015c734
* src/assuan-buffer.c (assuan_send_data): Wipe the buffer.
server: Wipe out the memory used by assuan_inquire if CONFIDENTIAL.
+ commit 4bfcd8a0f6f314581b40bed0cffe5f91441f4dff
* src/assuan-inquire.c (assuan_inquire): Wipe the memory and
inbound buffer.
libtool: Link without -flat_namespace for macOS.
+ commit e342b58b6230d22c1225ed680f05e9d134a8f657
* m4/libtool.m4: Not setting 10.0 to MACOSX_DEPLOYMENT_TARGET when not
defined. Only specify -flat_namespace to linker for specific
(older) versions and hosts.