DEFVAR_LISP ("shell-file-name", &Vshell_file_name,
doc: /* *File name to load inferior shells from.
-Initialized from the SHELL environment variable, or to /bin/sh
-if SHELL is not set. */);
+Initialized from the SHELL environment variable, or to a system-dependent
+default if SHELL is not set. */);
DEFVAR_LISP ("exec-path", &Vexec_path,
doc: /* *List of directories to search programs to run in subprocesses.