RS: invoke a shell explicitly for scripts

. don't rely on the scripts to be executable
	  (and they aren't any more)

servers/rs/manager.c

@@ -5,6 +5,8 @@
  *   Jul 22, 2005:	Created  (Jorrit N. Herder)
  */
 
+#include <paths.h>
+
 #include "inc.h"
 
 #include "kernel/proc.h"
@@ -1109,7 +1111,7 @@ static int run_script(struct rproc *rp)
 	case -1:
 		return kill_service(rp, "unable to fork script", errno);
 	case 0:
-		execle(rp->r_script, rp->r_script, rpub->label, reason,
+		execle(_PATH_BSHELL, rp->r_script, rpub->label, reason,
 			incarnation_str, (char*) NULL, envp);
 		printf("RS: run_script: execl '%s' failed: %s\n",
 			rp->r_script, strerror(errno));