cmd: Space does not delimit environment variable names.
[wine] / programs / cmd / tests /
drwxr-xr-x   ..
-rw-r--r-- 81 Makefile.in
-rw-r--r-- 16539 batch.c
-rw-r--r-- 966 rsrc.rc
-rw-r--r-- 37641 test_builtins.cmd
-rw-r--r-- 14094 test_builtins.cmd.exp