FreeBSD/src 7dabf89 (r345469)sys/amd64/linux32 linux32_machdep.c syscalls.master, sys/compat/linux linux_ipc.c linux_ipc.h

Linux between 4.18 and 5.0 split IPC system calls.
In preparation for doing this in the Linuxulator modify our linux_shmat()
to match actual Linux shmat() system call.

MFC after:      1 month
DeltaFile
+20-13sys/i386/linux/linux_machdep.c
+18-11sys/amd64/linux32/linux32_machdep.c
+1-13sys/compat/linux/linux_ipc.c
+2-2sys/amd64/linux32/syscalls.master
+2-2sys/i386/linux/syscalls.master
+0-1sys/compat/linux/linux_ipc.h
+43-426 files

UnifiedSplitRaw