Support for overriding built-in default FINIT_RCSD in finit.conf

This commit adds support for the "runparts <DIR>" directive to
finit.conf.  Enabling the user to override the built-in default,
which by default is /etc/finit.d.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

finit.h

@@ -66,6 +66,7 @@ extern char *sdown;
 extern char *network;
 extern char *hostname;
 extern char *username;
+extern char *rcsd;
 
 /* conf.c */
 void parse_finit_conf(char *file);