build-scripts/shlib/busybox-initramfs: fix message
lib/: add missing files

fixes commit 2b8902269c457877b9e25c022d9d96d057fe711c
Makefile: install-src, install-shlibcc-wrapper
Makefile: mkdir -p
Makefile: $SHLIB_SRC_REAL_DEST
build-scripts/generate-install-src: reduce # of commands
install-src: exclude lib/devel/shlib
start lib versioning
lib/die*: $DIE_WORD

+ die__minimal(): fix eerror message