Update some comments to clarify things.
diff --git a/Config.h b/Config.h
index a2e2d04..cff23e4 100644
--- a/Config.h
+++ b/Config.h
@@ -208,7 +208,7 @@
#define BB_FEATURE_REMOTE_LOG
//
//Simple tail implementation (2.34k vs 3k for the full one).
-//Both provide 'tail -f' support (only one file at a time.)
+//Both provide 'tail -f', but this cuts out -c, -q, -s, and -v.
#define BB_FEATURE_SIMPLE_TAIL
//
// Enable support for loop devices in mount
@@ -238,12 +238,14 @@
//// Enable reverse sort
#define BB_FEATURE_SORT_REVERSE
//
-// Enable command line editing in the shell
+// Enable command line editing in the shell.
+// Only relevant if BB_SH is enabled.
#define BB_FEATURE_SH_COMMAND_EDITING
//
//Allow the shell to invoke all the compiled in BusyBox applets as if they
//were shell builtins. Nice for staticly linking an emergency rescue shell,
//among other things.
+// Only relevant if BB_SH is enabled.
#define BB_FEATURE_SH_STANDALONE_SHELL
//
//When this is enabled, busybox shell applets can be called using full path
@@ -252,10 +254,12 @@
//will use BusyBox cat even if /bin/cat exists on the filesystem and is _not_
//busybox. Some systems want this, others do not. Choose wisely. :-) This
//only has meaning when BB_FEATURE_SH_STANDALONE_SHELL is enabled.
+// Only relevant if BB_SH is enabled.
//BB_FEATURE_SH_APPLETS_ALWAYS_WIN
//
// Enable tab completion in the shell (not yet
// working very well -- so don't turn this on)
+// Only relevant if BB_SH is enabled.
//#define BB_FEATURE_SH_TAB_COMPLETION
//
//Turn on extra fbset options