sysklogd/*: convert to new-style "one file" applets

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

sysklogd/logread.c

@@ -8,6 +8,31 @@
  *
  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
+//config:config LOGREAD
+//config:	bool "logread"
+//config:	default y
+//config:	depends on FEATURE_IPC_SYSLOG
+//config:	help
+//config:	  If you enabled Circular Buffer support, you almost
+//config:	  certainly want to enable this feature as well. This
+//config:	  utility will allow you to read the messages that are
+//config:	  stored in the syslogd circular buffer.
+//config:
+//config:config FEATURE_LOGREAD_REDUCED_LOCKING
+//config:	bool "Double buffering"
+//config:	default y
+//config:	depends on LOGREAD
+//config:	help
+//config:	  'logread' ouput to slow serial terminals can have
+//config:	  side effects on syslog because of the semaphore.
+//config:	  This option make logread to double buffer copy
+//config:	  from circular buffer, minimizing semaphore
+//config:	  contention at some minor memory expense.
+//config:
+
+//applet:IF_LOGREAD(APPLET(logread, BB_DIR_SBIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_LOGREAD) += logread.o
 
 //usage:#define logread_trivial_usage
 //usage:       "[-fF]"