guix.scm: Update mescc-tools to 0.4.
-rw-r--r-- 533 .gitignore
-rw-r--r-- 888 AUTHORS
-rw-r--r-- 3563 BOOTSTRAP
-rw-r--r-- 35147 COPYING
-rw-r--r-- 354 GNUmakefile
-rw-r--r-- 10682 HACKING
-rw-r--r-- 1421 INSTALL
-rw-r--r-- 13627 NEWS
-rw-r--r-- 2679 README
drwxr-xr-x - build-aux
-rwxr-xr-x 2169 build.sh
-rwxr-xr-x 2787 check-boot.sh
-rwxr-xr-x 2814 check-mescc.sh
-rwxr-xr-x 1836 check.sh
-rwxr-xr-x 10041 configure
drwxr-xr-x - doc
drwxr-xr-x - guile
-rw-r--r-- 8807 guix.scm
drwxr-xr-x - include
-rwxr-xr-x 743 install.sh
drwxr-xr-x - lib
-rwxr-xr-x 26910 make.scm
drwxr-xr-x - module
drwxr-xr-x - scaffold
drwxr-xr-x - scripts
drwxr-xr-x - src
drwxr-xr-x - stage0
-rwxr-xr-x 1871 test.sh
drwxr-xr-x - tests