crond: make it NOMMU-capable

function                                             old     new   delta
safe_setenv4                                           -      62     +62
ForkJob                                              472     511     +39
change_identity                                       21      57     +36
ParseField                                           564     571      +7
SynchronizeDir                                       178     176      -2
LogLevel                                               4       -      -4
LogFile                                                4       -      -4
FileBase                                               4       -      -4
DebugOpt                                               4       -      -4
CDir                                                   4       -      -4
DeleteFile                                           141     132      -9
packed_usage                                       24248   24228     -20
crondlog                                             157     113     -44
change_identity_e2str                                 54       -     -54
SynchronizeFile                                      729     671     -58
crond_main                                          1555    1404    -151
------------------------------------------------------------------------------
(add/remove: 1/6 grow/shrink: 3/6 up/down: 144/-358)         Total: -214 bytes

miscutils/Config.in

@@ -106,15 +106,13 @@ config CROND
 	      $ cat /var/spool/cron/crontabs/root
 	      # Run daily cron jobs at 4:40 every day:
 	      40 4 * * * /etc/cron/daily > /dev/null 2>&1
-	  Note that Busybox binary must be setuid root for this applet to
-	  work properly.
 
 config DEBUG_CROND_OPTION
-	bool "Support debug option -d"
+	bool "Support option -d to redirect output to stderr"
 	depends on CROND
 	default n
 	help
-	  Support option -d to enter debug mode.
+	  -d sets loglevel to 0 (most verbose) and directs all output to stderr.
 
 config FEATURE_CROND_CALL_SENDMAIL
 	bool "Using /usr/sbin/sendmail?"
@@ -130,6 +128,8 @@ config CRONTAB
 	help
 	  Crontab manipulates the crontab for a particular user.  Only
 	  the superuser may specify a different user and/or crontab directory.
+	  Note that Busybox binary must be setuid root for this applet to
+	  work properly.
 
 config DC
 	bool "dc"